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annotate Sphinx/source/users/rest.rst @ 825:e95713f90614 Orthanc-1.10.1
Orthanc 1.10.1
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 23 Mar 2022 18:04:53 +0100 |
parents | fa6d9c7237b4 |
children | 66ff2f30afcc |
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0 | 1 .. _rest: |
2 | |
3 REST API of Orthanc | |
4 =================== | |
5 | |
6 .. contents:: | |
7 :depth: 3 | |
8 | |
9 One of the major strengths of Orthanc lies in its built-in `RESTful | |
10 API | |
11 <https://en.wikipedia.org/wiki/Representational_state_transfer>`__, | |
12 that can be used to drive Orthanc from external applications, | |
13 independently of the programming language that is used to develop | |
14 these applications. The REST API of Orthanc gives a full programmatic | |
15 access to all the core features of Orthanc. | |
16 | |
17 Importantly, Orthanc Explorer (the embedded administrative interface | |
18 of Orthanc) entirely resorts to this REST API for all its features. | |
19 This implies that anything that can be done through Orthanc Explorer, | |
20 can also be done through REST queries. | |
21 | |
22 *Note:* All the examples are illustrated with the `cURL command-line | |
25 | 23 tool <https://curl.haxx.se/>`__, but equivalent calls can be readily |
0 | 24 transposed to any programming language that supports both HTTP and |
25 JSON. | |
26 | |
27 | |
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28 .. _curl-windows: |
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29 |
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30 Warning about using cURL from the Windows prompt |
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31 ------------------------------------------------ |
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32 |
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33 The examples on this page assume that the user is running a bash shell |
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34 on some GNU/Linux distribution. Such a shell has the major advantage |
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35 of having the possibility to use either single-quote or double-quotes |
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36 characters in order to group a set of characters (including spaces) as |
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37 a whole string. |
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38 |
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39 .. highlight:: bash |
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40 |
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41 Unfortunately, the default command-line prompt of Microsoft Windows |
675 | 42 **doesn't support single-quote characters**. If you copy/paste a cURL |
674
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43 command-line from this page that mixes single-quote and double-quotes, |
676 | 44 it won't work as such, and you'll have to replace single-quotes by |
45 double-quotes, and prefix the double-quotes by a backslash | |
46 character. For instance, consider the following command line that | |
47 works fine on GNU/Linux:: | |
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48 |
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49 $ curl -v -X PUT http://localhost:8042/modalities/sample \ |
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50 -d '{"AET" : "ORTHANCC", "Host": "127.0.0.1", "Port": 2002}' |
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51 |
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52 This call will **not** work on the Microsoft Windows prompt as it |
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53 contains single-quotes. You should adapt this command line as follows |
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54 to run it on Windows:: |
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55 |
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56 $ curl -v -X PUT http://localhost:8042/modalities/sample \ |
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57 -d "{\"AET\" : \"ORTHANCC\", \"Host\": \"127.0.0.1\", \"Port\": 2002}" |
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58 |
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59 As an alternative, consider using a different Windows shell, for |
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60 instance `Windows PowerShell |
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61 <https://fr.wikipedia.org/wiki/Windows_PowerShell>`__ (some examples |
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62 of PowerShell can be found below on this page). |
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63 |
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64 |
114 | 65 .. _sending-dicom-images: |
66 | |
0 | 67 Sending DICOM images |
68 -------------------- | |
69 | |
70 .. highlight:: bash | |
71 | |
72 The upload of DICOM files is possible by querying the REST API using | |
73 the following syntax:: | |
74 | |
75 $ curl -X POST http://localhost:8042/instances --data-binary @CT.X.1.2.276.0.7230010.dcm | |
76 | |
77 .. highlight:: json | |
78 | |
79 Orthanc will respond with a JSON file that contain information about | |
80 the location of the stored instance, such as:: | |
81 | |
82 { | |
83 "ID" : "e87da270-c52b-4f2a-b8c6-bae25928d0b0", | |
84 "Path" : "/instances/e87da270-c52b-4f2a-b8c6-bae25928d0b0", | |
85 "Status" : "Success" | |
86 } | |
87 | |
88 .. highlight:: bash | |
89 | |
90 Note that in the case of curl, setting the ``Expect`` HTTP Header will | |
91 significantly `reduce the execution time of POST requests | |
358
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92 <https://stackoverflow.com/questions/463144/php-http-post-fails-when-curl-data-1024/463277#463277>`__:: |
0 | 93 |
94 $ curl -X POST -H "Expect:" http://localhost:8042/instances --data-binary @CT.X.1.2.276.0.7230010.dcm | |
95 | |
96 The code distribution of Orthanc contains a `sample Python script | |
825 | 97 <https://hg.orthanc-server.com/orthanc/file/Orthanc-1.10.1/OrthancServer/Resources/Samples/ImportDicomFiles/ImportDicomFiles.py>`__ |
0 | 98 that recursively upload the content of some folder into Orthanc using |
99 the REST API:: | |
100 | |
101 $ python ImportDicomFiles.py localhost 8042 ~/DICOM/ | |
102 | |
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103 Starting with Orthanc 1.8.1, the source distribution of Orthanc |
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104 includes another Python script named ``OrthancImport.py`` that |
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105 provides more features than ``ImportDicomFiles.py``. It can notably |
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106 import the content of ``.zip``, ``.tar.gz`` or ``.tar.bz2`` archives |
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107 without having to uncompress them first. It also provides more |
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108 comprehensive command-line options. `Check this script out |
825 | 109 <https://hg.orthanc-server.com/orthanc/file/Orthanc-1.10.1/OrthancServer/Resources/Samples/ImportDicomFiles/OrthancImport.py>`__. |
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110 |
0 | 111 |
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112 .. highlight:: perl |
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113 |
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114 If you are using Powershell (>= 3.0), you can use the following to send a single |
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115 Dicom instance to Orthanc:: |
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116 |
376 | 117 # disabling the progress bar makes the Invoke-RestMethod call MUCH faster |
297
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118 $ProgressPreference = 'SilentlyContinue' |
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119 |
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120 # upload it to Orthanc |
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121 $reply = Invoke-RestMethod http://localhost:8042/instances -Method POST -InFile CT.X.1.2.276.0.7230010.dcm |
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122 |
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123 # display the result |
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124 Write-Host "The instance can be retrieved at http://localhost:8042$($reply.Path)" |
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125 |
0 | 126 .. _rest-access: |
127 | |
128 Accessing the content of Orthanc | |
129 -------------------------------- | |
130 | |
131 Orthanc structures the stored DICOM resources using the "Patient, | |
132 Study, Series, Instance" model of the DICOM standard. Each DICOM | |
133 resource is associated with an :ref:`unique identifier <orthanc-ids>`. | |
134 | |
135 List all the DICOM resources | |
136 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
137 | |
138 Here is how you would list all the DICOM resources that are stored in | |
139 your local Orthanc instance:: | |
140 | |
141 $ curl http://localhost:8042/patients | |
142 $ curl http://localhost:8042/studies | |
143 $ curl http://localhost:8042/series | |
144 $ curl http://localhost:8042/instances | |
145 | |
146 Note that the result of this command is a `JSON file | |
25 | 147 <https://en.wikipedia.org/wiki/Json>`__ that contains an array of |
0 | 148 resource identifiers. The JSON file format is lightweight and can be |
149 parsed from almost any computer language. | |
150 | |
151 Accessing a patient | |
152 ^^^^^^^^^^^^^^^^^^^ | |
153 | |
154 .. highlight:: bash | |
155 | |
156 To access a single resource, add its identifier to the `URI | |
25 | 157 <https://en.wikipedia.org/wiki/Uniform_resource_identifier>`__. You |
0 | 158 would for instance retrieve the main information about one patient as |
159 follows:: | |
160 | |
161 $ curl http://localhost:8042/patients/dc65762c-f476e8b9-898834f4-2f8a5014-2599bc94 | |
162 | |
163 .. highlight:: json | |
164 | |
165 Here is a possible answer from Orthanc:: | |
166 | |
167 { | |
168 "ID" : "07a6ec1c-1be5920b-18ef5358-d24441f3-10e926ea", | |
169 "MainDicomTags" : { | |
170 "OtherPatientIDs" : "(null)", | |
171 "PatientBirthDate" : "0", | |
172 "PatientID" : "000000185", | |
173 "PatientName" : "Anonymous^Unknown", | |
174 "PatientSex" : "O" | |
175 }, | |
176 "Studies" : [ "9ad2b0da-a406c43c-6e0df76d-1204b86f-78d12c15" ], | |
177 "Type" : "Patient" | |
178 } | |
179 | |
180 This is once again a JSON file. Note how Orthanc gives you a summary | |
181 of the main DICOM tags that correspond to the patient level. | |
182 | |
168
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183 |
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184 .. _browsing-hierarchy: |
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185 |
0 | 186 Browsing from the patient down to the instance |
187 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
188 | |
189 .. highlight:: bash | |
190 | |
191 The field ``Studies`` list all the DICOM studies that are associated | |
192 with the patient. So, considering the patient above, we would go down | |
193 in her DICOM hierarchy as follows:: | |
194 | |
195 $ curl http://localhost:8042/studies/9ad2b0da-a406c43c-6e0df76d-1204b86f-78d12c15 | |
196 | |
197 .. highlight:: json | |
198 | |
199 And Orthanc could answer:: | |
200 | |
201 { | |
202 "ID" : "9ad2b0da-a406c43c-6e0df76d-1204b86f-78d12c15", | |
203 "MainDicomTags" : { | |
204 "AccessionNumber" : "(null)", | |
205 "StudyDate" : "20120716", | |
206 "StudyDescription" : "TestSUVce-TF", | |
207 "StudyID" : "23848", | |
208 "StudyInstanceUID" : "1.2.840.113704.1.111.7016.1342451220.40", | |
209 "StudyTime" : "170728" | |
210 }, | |
211 "ParentPatient" : "07a6ec1c-1be5920b-18ef5358-d24441f3-10e926ea", | |
212 "Series" : [ | |
213 "6821d761-31fb55a9-031ebecb-ba7f9aae-ffe4ddc0", | |
214 "2cc6336f-2d4ae733-537b3ca3-e98184b1-ba494b35", | |
215 "7384c47e-6398f2a8-901846ef-da1e2e0b-6c50d598" | |
216 ], | |
217 "Type" : "Study" | |
218 } | |
219 | |
220 .. highlight:: bash | |
221 | |
222 The main DICOM tags are now those that are related to the study | |
223 level. It is possible to retrieve the identifier of the patient in the | |
224 ``ParentPatient`` field, which can be used to go upward the DICOM | |
225 hierarchy. But let us rather go down to the series level by using the | |
226 ``Series`` array. The next command would return information about one | |
227 of the three series that have just been reported:: | |
228 | |
229 $ curl http://localhost:8042/series/2cc6336f-2d4ae733-537b3ca3-e98184b1-ba494b35 | |
230 | |
231 .. highlight:: json | |
232 | |
233 Here is a possible answer:: | |
234 | |
235 { | |
236 "ExpectedNumberOfInstances" : 45, | |
237 "ID" : "2cc6336f-2d4ae733-537b3ca3-e98184b1-ba494b35", | |
238 "Instances" : [ | |
239 "41bc3f74-360f9d10-6ae9ffa4-01ea2045-cbd457dd", | |
240 "1d3de868-6c4f0494-709fd140-7ccc4c94-a6daa3a8", | |
241 <...> | |
242 "1010f80b-161b71c0-897ec01b-c85cd206-e669a3ea", | |
243 "e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4" | |
244 ], | |
245 "MainDicomTags" : { | |
246 "Manufacturer" : "Philips Medical Systems", | |
247 "Modality" : "PT", | |
248 "NumberOfSlices" : "45", | |
249 "ProtocolName" : "CHU/Body_PET/CT___50", | |
250 "SeriesDate" : "20120716", | |
251 "SeriesDescription" : "[WB_CTAC] Body", | |
252 "SeriesInstanceUID" : "1.3.46.670589.28.2.12.30.26407.37145.2.2516.0.1342458737", | |
253 "SeriesNumber" : "587370", | |
254 "SeriesTime" : "171121", | |
255 "StationName" : "r054-svr" | |
256 }, | |
257 "ParentStudy" : "9ad2b0da-a406c43c-6e0df76d-1204b86f-78d12c15", | |
258 "Status" : "Complete", | |
259 "Type" : "Series" | |
260 } | |
261 | |
262 It can be seen that this series comes from a PET modality. Orthanc has | |
263 computed that this series should contain 45 instances. | |
264 | |
265 .. highlight:: bash | |
266 | |
267 So far, we have navigated from the patient level, to the study level, | |
268 and finally to the series level. There only remains the instance | |
269 level. Let us dump the content of one of the instances:: | |
270 | |
271 $ curl http://localhost:8042/instances/e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4 | |
272 | |
273 .. highlight:: json | |
274 | |
275 The instance contains the following information:: | |
276 | |
277 { | |
278 "FileSize" : 70356, | |
279 "FileUuid" : "3fd265f0-c2b6-41a2-ace8-ae332db63e06", | |
280 "ID" : "e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4", | |
281 "IndexInSeries" : 6, | |
282 "MainDicomTags" : { | |
283 "ImageIndex" : "6", | |
284 "InstanceCreationDate" : "20120716", | |
285 "InstanceCreationTime" : "171344", | |
286 "InstanceNumber" : "6", | |
287 "SOPInstanceUID" : "1.3.46.670589.28.2.15.30.26407.37145.3.2116.39.1342458737" | |
288 }, | |
289 "ParentSeries" : "2cc6336f-2d4ae733-537b3ca3-e98184b1-ba494b35", | |
290 "Type" : "Instance" | |
291 } | |
292 | |
293 .. highlight:: bash | |
294 | |
295 The instance has the index 6 in the parent series. The instance is | |
296 stored as a raw DICOM file of 70356 bytes. You would download this | |
297 DICOM file using the following command:: | |
298 | |
299 $ curl http://localhost:8042/instances/e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4/file > Instance.dcm | |
300 | |
301 | |
302 Accessing the DICOM fields of an instance as a JSON file | |
303 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
304 | |
305 .. highlight:: bash | |
306 | |
307 When one gets to the instance level, you can retrieve the hierarchy of | |
308 all the DICOM tags of this instance as a JSON file:: | |
309 | |
310 $ curl http://localhost:8042/instances/e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4/simplified-tags | |
311 | |
312 .. highlight:: json | |
313 | |
314 Here is a excerpt of the Orthanc answer:: | |
315 | |
316 { | |
317 "ACR_NEMA_2C_VariablePixelDataGroupLength" : "57130", | |
318 "AccessionNumber" : null, | |
319 "AcquisitionDate" : "20120716", | |
320 "AcquisitionDateTime" : "20120716171219", | |
321 "AcquisitionTime" : "171219", | |
322 "ActualFrameDuration" : "3597793", | |
323 "AttenuationCorrectionMethod" : "CTAC-SG", | |
324 <...> | |
325 "PatientID" : "000000185", | |
326 "PatientName" : "Anonymous^Unknown", | |
327 "PatientOrientationCodeSequence" : [ | |
328 { | |
329 "CodeMeaning" : "recumbent", | |
330 "CodeValue" : "F-10450", | |
331 "CodingSchemeDesignator" : "99SDM", | |
332 "PatientOrientationModifierCodeSequence" : [ | |
333 { | |
334 "CodeMeaning" : "supine", | |
335 "CodeValue" : "F-10340", | |
336 "CodingSchemeDesignator" : "99SDM" | |
337 } | |
338 ] | |
339 } | |
340 ], | |
341 <...> | |
342 "StudyDescription" : "TestSUVce-TF", | |
343 "StudyID" : "23848", | |
344 "StudyInstanceUID" : "1.2.840.113704.1.111.7016.1342451220.40", | |
345 "StudyTime" : "171117", | |
346 "TypeOfDetectorMotion" : "NONE", | |
347 "Units" : "BQML", | |
348 "Unknown" : null, | |
349 "WindowCenter" : "1.496995e+04", | |
350 "WindowWidth" : "2.993990e+04" | |
351 } | |
352 | |
353 .. highlight:: bash | |
354 | |
355 If you need more detailed information about the type of the variables | |
356 or if you wish to use the hexadecimal indexes of DICOM tags, you are | |
357 free to use the following URL:: | |
358 | |
359 $ curl http://localhost:8042/instances/e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4/tags | |
360 | |
361 Accessing the raw DICOM fields of an instance | |
362 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
363 | |
364 .. highlight:: bash | |
365 | |
366 You also have the opportunity to access the raw value of the DICOM | |
367 tags of an instance, without going through a JSON file. Here is how | |
368 you would find the Patient Name of the instance:: | |
369 | |
370 $ curl http://localhost:8042/instances/e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4/content/0010-0010 | |
136
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371 Anonymous^Unknown |
0 | 372 |
373 The list of all the available tags for this instance can also be retrieved easily:: | |
374 | |
375 $ curl http://localhost:8042/instances/e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4/content | |
376 | |
377 It is also possible to recursively explore the sequences of tags:: | |
378 | |
379 $ curl http://localhost:8042/instances/e668dcbf-8829a100-c0bd203b-41e404d9-c533f3d4/content/0008-1250/0/0040-a170/0/0008-0104 | |
380 For Attenuation Correction | |
381 | |
382 The command above has opened the "0008-1250" tag that is a DICOM | |
383 sequence, taken its first child, opened its "0040-a170" tag that is | |
384 also a sequence, taken the first child of this child, and returned the | |
385 "0008-0104" DICOM tag. | |
386 | |
387 Downloading images | |
388 ^^^^^^^^^^^^^^^^^^ | |
389 | |
390 .. highlight:: bash | |
391 | |
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392 As :ref:`explained above <browsing-hierarchy>`, the raw DICOM file |
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393 corresponding to a single instance can be retrieved as follows:: |
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394 |
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395 $ curl http://localhost:8042/instances/609665c0-c5198aa2-8632476b-a00e0de0-e9075d94/file > Instance.dcm |
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396 |
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397 It is also possible to download a preview PNG image that corresponds |
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398 to some DICOM instance:: |
0 | 399 |
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400 $ curl http://localhost:8042/instances/609665c0-c5198aa2-8632476b-a00e0de0-e9075d94/preview > Preview.png |
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401 |
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402 The resulting image will be a standard graylevel PNG image (with 8 |
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403 bits per pixel) that can be opened by any painting software. The |
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404 dynamic range of the pixel data is stretched to the [0..255] range. |
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405 An equivalent JPEG image can be downloaded by setting the `HTTP header |
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406 <https://en.wikipedia.org/wiki/List_of_HTTP_header_fields>`__ |
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407 ``Accept`` to ``image/jpeg``:: |
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408 |
169 | 409 $ curl -H 'Accept: image/jpeg' http://localhost:8042/instances/609665c0-c5198aa2-8632476b-a00e0de0-e9075d94/preview > Preview.jpg |
0 | 410 |
168
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411 If you don't want to stretch the dynamic range, and create a 8bpp or |
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412 16bpp PNG image, you can use the following URIs:: |
0 | 413 |
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414 $ curl http://localhost:8042/instances/609665c0-c5198aa2-8632476b-a00e0de0-e9075d94/image-uint8 > full-8.png |
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415 $ curl http://localhost:8042/instances/609665c0-c5198aa2-8632476b-a00e0de0-e9075d94/image-uint16 > full-16.png |
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416 |
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417 In these images, the values are cropped to the maximal value that can |
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418 be encoded by the target image format. The |
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419 ``/instances/{...}/image-int16`` is available as well to download |
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420 signed DICOM pixel data. |
0 | 421 |
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422 Since Orthanc 1.4.2, it is also possible to download such images in |
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423 the generic `PAM format |
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424 <https://en.wikipedia.org/wiki/Netpbm#PAM_graphics_format>`__:: |
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425 |
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426 $ curl -H 'Accept: image/x-portable-arbitrarymap' http://localhost:8042/instances/609665c0-c5198aa2-8632476b-a00e0de0-e9075d94/image-uint16 > full-16.pam |
0 | 427 |
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428 Users of Matlab or Octave can find related information :ref:`in the |
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429 dedicated section <matlab>`. |
0 | 430 |
820
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431 |
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432 .. _download_numpy: |
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433 |
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434 Downloading decoded images from Python |
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435 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
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436 |
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437 .. highlight:: python |
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438 |
825 | 439 Starting with Orthanc 1.10.1, it is possible to immediately download |
820
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440 DICOM instances and DICOM series as numpy arrays (even if they use a |
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441 compressed transfer syntax). This is especially useful for the |
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442 integration within AI (artificial intelligence) pipelines. Here is a |
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443 sample call:: |
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444 |
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445 import io |
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446 import numpy |
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447 import requests |
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448 |
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449 r = requests.get('https://demo.orthanc-server.com/instances/6582b1c0-292ad5ab-ba0f088f-f7a1766f-9a29a54f/numpy') |
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450 r.raise_for_status() |
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451 |
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452 image = numpy.load(io.BytesIO(r.content)) |
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453 print(image.shape) # (1, 358, 512, 1) |
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454 |
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455 The downloaded numpy array for one single DICOM instance contains |
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456 floating-point values, and has a shape of ``(1, height, width, 1)`` if |
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457 the corresponding instance is grayscale, or ``(1, height, width, 3)`` |
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458 if the instance has colors (e.g. in ultrasound images). If applicable, |
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459 the ``Rescale Slope (0028,1053)`` and ``Rescale Intercept |
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460 (0028,1052)`` DICOM tags are applied to the floating-point values. |
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461 |
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462 Similarly, this feature is available at the series level:: |
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463 |
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464 import io |
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465 import numpy |
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466 import requests |
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467 |
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468 r = requests.get('https://demo.orthanc-server.com/series/dc0216d2-a406a5ad-31ef7a78-113ae9d9-29939f9e/numpy') |
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469 r.raise_for_status() |
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470 |
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471 image = numpy.load(io.BytesIO(r.content)) |
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472 print(image.shape) # (100, 256, 256, 1) |
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473 |
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474 As can be seen, in the case of a DICOM series, the first dimension of |
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475 the resulting numpy array corresponds to the depth of the series |
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476 (i.e. to its number of 2D slices). |
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477 |
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478 Some options are available for these ``/instances/.../numpy`` and |
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479 ``/series/.../numpy`` routes: |
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480 |
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481 * ``?compress=1`` will return a ``.npz`` compressed numpy archive |
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482 instead of a plain ``.npy`` numpy array. This can be used to reduce |
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483 the network bandwidth. In such a case, the array of interest is |
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484 named ``arr_0`` in the ``.npz`` archive, e.g.:: |
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485 |
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486 print(image['arr_0'].shape) |
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487 |
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488 * ``?rescale=0`` will skip the conversion to floating-point values, |
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489 and will not apply the rescale slope/intercept. This can be useful |
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490 to reduce the network bandwidth or to receive the original integer |
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491 values of the voxels. |
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492 |
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493 |
380 | 494 Downloading studies |
411 | 495 ^^^^^^^^^^^^^^^^^^^ |
380 | 496 |
497 .. highlight:: bash | |
498 | |
499 All instances of a study can be retrieved as a zip file as follows:: | |
500 | |
501 $ curl http://localhost:8042/studies/6b9e19d9-62094390-5f9ddb01-4a191ae7-9766b715/archive > Study.zip | |
502 | |
503 It is also possible to download a zipped DICOMDIR through:: | |
504 | |
381 | 505 $ curl http://localhost:8042/studies/6b9e19d9-62094390-5f9ddb01-4a191ae7-9766b715/media > Study.zip |
380 | 506 |
218 | 507 |
732
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508 .. _download-pdf-videos: |
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509 |
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510 Downloading PDF or videos |
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511 ^^^^^^^^^^^^^^^^^^^^^^^^^ |
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512 |
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513 .. highlight:: bash |
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514 |
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515 Given a DICOM instance that embeds a PDF file (typically, one instance |
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516 whose SOP Class UID is ``1.2.840.10008.5.1.4.1.1.104.1`` - |
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517 Encapsulated PDF Storage), the PDF content can be downloaded as |
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518 follows:: |
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519 |
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520 $ curl http://localhost:8042/instances/1915e0cc-c2c1a0fc-12cdd7f5-3ba32114-a97c2c9b/content/0042,0011 > sample.pdf |
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521 |
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522 This corresponds to downloading the raw DICOM tag "Encapsulated |
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523 Document" (0042,0011). Beware that the last byte of the downloaded |
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524 file might correspond to one padding byte, if the source PDF had an |
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525 odd number of bytes. |
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526 |
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527 Similarly, if you know that a DICOM instance :ref:`embeds a video |
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528 <videos>` (which can be tested by checking the :ref:`value of the |
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529 metadata <metadata-core>` corresponding to its transfer syntax UID), |
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530 the raw video can be downloaded as follows:: |
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531 |
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532 $ curl http://localhost:8042/instances/e465dd27-83c96343-96848735-7035a133-1facf1a0/frames/0/raw > sample.mp4 |
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533 |
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534 |
218 | 535 .. _peering: |
536 | |
216 | 537 Sending resources to remote Orthanc over HTTP/HTTPS (through Orthanc peering) |
224
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538 ----------------------------------------------------------------------------- |
216 | 539 |
428
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540 Orthanc can send its DICOM instances to remote Orthanc servers over |
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541 HTTP/HTTPS. Such servers are referred to as :ref:`Orthanc peers |
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542 <peers>`. This process can be triggered by the REST API, which is |
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543 described in this section. |
216 | 544 |
545 Configuration | |
546 ^^^^^^^^^^^^^ | |
547 | |
548 .. highlight:: json | |
549 | |
314
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550 You first have to declare the Url of the remote orthanc inside the |
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551 :ref:`configuration file <configuration>`. For instance, here is how |
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552 to declare a remote orthanc peer:: |
216 | 553 |
554 ... | |
494 | 555 "OrthancPeers" : { |
216 | 556 "sample" : [ "http://localhost:8043" ], // short version |
557 "sample2" : { // long version | |
558 "Url" : "http://localhost:8044", | |
559 "Username" : "alice", // optional | |
560 "Password" : "alicePassword", // optional | |
561 "HttpHeaders" : { "Token" : "Hello world" }, // optional | |
562 "CertificateFile" : "client.crt", // optional (only if using client certificate authentication) | |
563 "CertificateKeyFile" : "client.key", // optional (only if using client certificate authentication) | |
564 "CertificateKeyPassword" : "certpass" // optional (only if using client certificate authentication) | |
565 }, | |
566 ... | |
567 | |
568 .. highlight:: bash | |
569 | |
570 Such a configuration would enable Orthanc to connect to two other | |
667
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571 Orthanc instances that listens on the localhost on the ports 8043 |
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572 and 8044. The peers that are known to Orthanc can be queried:: |
216 | 573 |
574 $ curl http://localhost:8042/peers?expand | |
575 | |
667
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576 Instead of using the configuration file, peers can be created or |
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577 updated through the REST API using the ``PUT`` method of HTTP:: |
216 | 578 |
579 $ curl -v -X PUT http://localhost:8042/peers/sample -d '{"Url" : "http://127.0.0.1:8043"}' | |
580 | |
667
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581 One peer can also be removed using the ``DELETE`` method as follows:: |
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582 |
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583 $ curl -v -X DELETE http://localhost:8042/peers/sample |
216 | 584 |
667
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585 Note that, by default, peers are read from the Orthanc configuration |
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586 files and are updated in Orthanc memory only. If you want your |
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587 modifications to be persistent, you should configure Orthanc to store |
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588 its peers in the database. This is done through this configuration:: |
0 | 589 |
216 | 590 ... |
591 "OrthancPeersInDatabase" : true, | |
592 ... | |
593 | |
594 Sending One Resource | |
595 ^^^^^^^^^^^^^^^^^^^^ | |
596 | |
597 .. highlight:: bash | |
598 | |
599 Once you have identified the Orthanc identifier of the DICOM resource | |
600 that would like to send :ref:`as explained above <rest-access>`, you | |
601 would use the following command to send it:: | |
602 | |
603 $ curl -X POST http://localhost:8042/peers/sample/store -d c4ec7f68-9b162055-2c8c5888-5bf5752f-155ab19f | |
604 | |
605 The ``/sample/`` component of the URI corresponds to the identifier of | |
606 the remote modality, as specified above in the configuration file. | |
607 | |
608 Note that you can send isolated DICOM instances with this command, but | |
609 also entire patients, studies or series. It is possible to send multiple instances with a single POST | |
610 request:: | |
611 | |
612 $ curl -X POST http://localhost:8042/peers/sample/store -d '["d4b46c8e-74b16992-b0f5ca11-f04a60fa-8eb13a88","d5604121-7d613ce6-c315a5-a77b3cf3-9c253b23","cb855110-5f4da420-ec9dc9cb-2af6a9bb-dcbd180e"]' | |
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613 |
216 | 614 Note that the list of resources to be sent can include the |
615 :ref:`Orthanc identifiers <orthanc-ids>` of entire patients, | |
616 studies or series as well. | |
617 | |
633
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618 **Important remark:** Neither the :ref:`metadata <metadata>`, nor the |
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619 :ref:`attachments <attachments>` are transferred between the Orthanc |
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620 peers. This is because metadata and attachments are considered as |
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621 local to one Orthanc server. |
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622 |
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623 |
294 | 624 Testing connectivity with a remote peer |
625 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
626 | |
627 .. highlight:: bash | |
628 | |
629 In version 1.5.9+, we have introduced a route to retrieve the ``/system`` info from | |
630 a remote peer. This route can also be used to test the connectivity with that peer | |
631 without actually sending a DICOM resource.:: | |
632 | |
633 $ curl http://localhost:8042/peers/sample/system | |
634 | |
635 | |
216 | 636 Using HTTPS |
637 ^^^^^^^^^^^ | |
638 | |
609
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639 If you're transfering medical data over internet, it is mandatory to |
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640 use HTTPS. |
216 | 641 |
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642 On the server side, we recommend to put Orthanc behind an :ref:`HTTPS |
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643 server that will take care of the TLS <https>`. |
216 | 644 |
609
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645 On the client side, in order for the client Orthanc to recognize the |
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646 server certificate, you'll have to provide a path to the CA |
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647 (certification authority) certificates. This is done in the |
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648 configuration file through this configurationg:: |
216 | 649 |
650 ... | |
651 "HttpsCACertificates" : "/etc/ssl/certs/ca-certificates.crt, | |
652 ... | |
653 | |
223 | 654 If you want your server to accept incoming connections for known hosts only, you can either: |
216 | 655 |
656 - configure a firewall to accept incoming connections from known IP addresses | |
657 - configure your client Orthanc to use a client certificate to authenticate at the Server. This is done through the ``CertificateFile``, ``CertificateKeyFile`` and ``CertificateKeyPassword`` entries in the configuration file. | |
658 | |
659 | |
660 | |
661 | |
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662 Sending resources to remote modalities (through DICOM C-Store) |
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663 -------------------------------------------------------------- |
0 | 664 |
665 Orthanc can send its DICOM instances to remote DICOM modalities (C-Store SCU). This process | |
666 can be triggered by the REST API. | |
667 | |
668 Configuration | |
669 ^^^^^^^^^^^^^ | |
670 | |
671 .. highlight:: json | |
672 | |
673 You first have to declare the AET, the IP address and the port number | |
674 of the remote modality inside the :ref:`configuration file | |
675 <configuration>`. For instance, here is how to declare a remote | |
676 modality:: | |
677 | |
678 ... | |
679 "DicomModalities" : { | |
212 | 680 "sample" : [ "ORTHANCA", "127.0.0.1", 2000 ], // short version |
681 "sample2" : { // long version | |
682 "AET" : "ORTHANCB", | |
683 "Port" : 2001, | |
684 "Host" : "127.0.0.1", | |
685 "Manufacturer" : "Generic", | |
686 "AllowEcho" : true, | |
687 "AllowFind" : true, | |
688 "AllowMove" : true, | |
689 "AllowStore" : true | |
690 } | |
0 | 691 }, |
692 ... | |
693 | |
694 .. highlight:: bash | |
695 | |
212 | 696 Such a configuration would enable Orthanc to connect to two DICOM |
697 stores (for instance, other Orthanc instances) that listens on the | |
698 localhost on the port 2000 & 2001. The modalities that are known to Orthanc | |
0 | 699 can be queried:: |
700 | |
212 | 701 $ curl http://localhost:8042/modalities?expand |
702 | |
667
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703 Instead of using the configuration file, modalities can be created or |
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704 updated through the REST API using the ``PUT`` method of HTTP:: |
212 | 705 |
706 $ curl -v -X PUT http://localhost:8042/modalities/sample -d '{"AET" : "ORTHANCC", "Host": "127.0.0.1", "Port": 2002}' | |
707 | |
667
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708 One modality can also be removed using the ``DELETE`` method as follows:: |
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709 |
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710 $ curl -v -X DELETE http://localhost:8042/modalities/sample |
0 | 711 |
667
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712 Note that, by default, modalities are read from the Orthanc |
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713 configuration files and are updated in Orthanc memory only. If you |
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714 want your modifications to be persistent, you should configure Orthanc |
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715 to store the modalities in the database. This is done through this |
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716 configuration:: |
212 | 717 |
718 ... | |
719 "DicomModalitiesInDatabase" : true, | |
720 ... | |
0 | 721 |
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722 |
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723 .. _rest-store-scu: |
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724 |
0 | 725 Sending One Resource |
726 ^^^^^^^^^^^^^^^^^^^^ | |
727 | |
728 .. highlight:: bash | |
729 | |
730 Once you have identified the Orthanc identifier of the DICOM resource | |
731 that would like to send :ref:`as explained above <rest-access>`, you | |
732 would use the following command to send it:: | |
733 | |
734 $ curl -X POST http://localhost:8042/modalities/sample/store -d c4ec7f68-9b162055-2c8c5888-5bf5752f-155ab19f | |
735 | |
736 The ``/sample/`` component of the URI corresponds to the identifier of | |
737 the remote modality, as specified above in the configuration file. | |
738 | |
173
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739 Note that you can send isolated DICOM instances with this command, but |
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740 also entire patients, studies or series. |
0 | 741 |
407 | 742 Various optional fields are also available. i.e, if you need to |
743 monitor the state of a transfer, you can start the transfer in :ref:`asynchronous mode | |
744 <jobs>`, which will provide you with the identifier of the Orthanc job:: | |
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745 |
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746 $ curl -X POST http://localhost:8042/modalities/sample/store \ |
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747 --data '{ |
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748 "Resources" : ["d4b46c8e-74b16992-b0f5ca11-f04a60fa-8eb13a88"], |
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749 "Synchronous" : false, |
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750 "LocalAet" : "ORTHANC", |
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751 "MoveOriginatorAet": "ORTHANC", |
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752 "MoveOriginatorID": 1234, |
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753 "Timeout": 10, |
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754 "StorageCommitment": false |
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755 }' |
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756 |
403 | 757 |
0 | 758 Bulk Store SCU |
759 ^^^^^^^^^^^^^^ | |
760 | |
761 .. highlight:: bash | |
762 | |
763 Each time a POST request is made to ``/modalities/.../store``, a new | |
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764 DICOM association is possibly established. This may lead to a large |
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765 communication overhead if sending multiple isolated instances by |
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766 making one REST call for each of these instances. |
0 | 767 |
768 To circumvent this problem, you have 2 possibilities: | |
769 | |
770 1. Set the ``DicomAssociationCloseDelay`` option in the | |
771 :ref:`configuration file <configuration>` to a non-zero value. This | |
772 will keep the DICOM connection open for a certain amount of time, | |
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773 waiting for new instances to be routed. This is useful if |
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774 autorouting images :ref:`using Lua <lua-auto-routing>`. |
0 | 775 |
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776 2. It is possible to send multiple instances with a single POST |
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777 request (so-called "Bulk Store SCU", available from Orthanc |
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778 0.5.2):: |
0 | 779 |
780 $ curl -X POST http://localhost:8042/modalities/sample/store -d '["d4b46c8e-74b16992-b0f5ca11-f04a60fa-8eb13a88","d5604121-7d613ce6-c315a5-a77b3cf3-9c253b23","cb855110-5f4da420-ec9dc9cb-2af6a9bb-dcbd180e"]' | |
781 | |
782 The list of the resources to be sent are given as a JSON array. In | |
783 this case, a single DICOM connection is used. `Sample code is | |
784 available | |
449 | 785 <https://hg.orthanc-server.com/orthanc/file/default/OrthancServer/Resources/Samples/Python/HighPerformanceAutoRouting.py>`__. |
0 | 786 |
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787 Note that the list of resources to be sent can include the |
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788 :ref:`Orthanc identifiers <orthanc-ids>` of entire patients, |
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789 studies or series as well. |
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790 |
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791 |
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792 Performing C-Echo |
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793 ----------------- |
0 | 794 |
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795 To validate the DICOM connectivity between Orthanc and a remote modality, |
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796 you can perform a C-ECHO:: |
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797 |
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798 $ curl -X POST http://localhost:8042/modalities/sample/echo -d '{}' |
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799 |
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800 From Orthanc 1.7.0, you can include an extra ``Timeout`` field:: |
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801 |
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802 $ curl -X POST http://localhost:8042/modalities/sample/echo -d '{ "Timeout": 10 }' |
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803 |
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804 If no ``Timeout`` parameter is specified, the value of the ``DicomScuTimeout`` |
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805 configuration is used as a default. If ``Timeout`` is set to zero, this means |
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806 no timeout. |
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807 |
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808 NB: A body containing a valid JSON object is needed by |
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809 ``/modalities/{id}/echo`` since Orthanc 1.7.0. |
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810 |
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811 |
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812 Performing C-Move |
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813 ----------------- |
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814 |
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815 .. highlight:: bash |
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816 |
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817 You can perform a DICOM C-Move to move a specific study from one modality |
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818 to another (including Orthanc itself if you don't specify the ``TargetAet`` |
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819 field). |
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820 |
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821 I.e. to move a study whose you know the ``StudyInstanceUID`` from |
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822 the modality ``sample`` to another Orthanc whose AET is ``ORTHANCB``:: |
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823 |
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824 $ curl --request POST --url http://localhost:8042/modalities/samples/move \ |
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825 --data '{ |
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826 "Level" : "Study", |
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827 "Resources" : [ |
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828 { |
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829 "StudyInstanceUID": "1.2.840.113543.6.6.4.7.64067529866380271256212683512383713111129" |
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830 } |
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831 ], |
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832 "TargetAet": "ORTHANCB", |
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833 "Timeout": 60 |
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834 }' |
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835 |
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836 |
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837 Performing Query/Retrieve (C-Find) and Find with REST |
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838 ----------------------------------------------------- |
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839 |
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840 *Section contributed by Bryan Dearlove* |
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841 |
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842 Orthanc can be used to perform queries on the local Orthanc instance, |
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843 or on remote modalities through the REST API. |
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844 |
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845 To perform a query of a remote modality you must define the modality |
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846 within the :ref:`configuration file <configuration>` (See |
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847 Configuration section under Sending resources to remote modalities). |
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848 |
698 | 849 .. _rest-find-scu: |
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850 |
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851 Performing Queries on Modalities |
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852 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
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853 |
138 | 854 .. highlight:: bash |
855 | |
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856 To initiate a query you perform a POST command against the Modality |
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857 with the identifiers you are looking for. The the example below we are |
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858 performing a study level query against the modality sample for any |
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859 study descriptions with the word chest within it. This search is case |
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860 insensitive unless configured otherwise within the Orthanc |
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861 configuration file:: |
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862 |
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863 $ curl --request POST \ |
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864 --url http://localhost:8042/modalities/sample/query \ |
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865 --data '{ |
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866 "Level" : "Study", |
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867 "Query" : { |
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868 "PatientID" : "", |
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869 "StudyDescription" : "*Chest*", |
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870 "PatientName" : "" |
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871 } |
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872 }' |
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873 |
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874 You might be interested in including the ``Normalize`` option to bypass |
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875 the normalization of the outgoing C-FIND queries. For instance, for |
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876 the ``InstitutionName`` to be included at the ``Study`` level, one would |
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877 run:: |
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878 |
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879 $ curl -v http://localhost:8042/modalities/sample/query -X POST -d \ |
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880 '{"Level":"Study","Query":{"InstitutionName":"a"},"Normalize":false}' |
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881 |
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882 .. highlight:: json |
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883 |
138 | 884 You will receive back an ID which can be used to retrieve more |
885 information with GET commands or C-Move requests with a POST Command:: | |
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886 |
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887 { |
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888 "ID": "5af318ac-78fb-47ff-b0b0-0df18b0588e0", |
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889 "Path": "/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0" |
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890 } |
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891 |
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892 |
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893 Additional Options |
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894 ^^^^^^^^^^^^^^^^^^ |
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895 |
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896 .. highlight:: json |
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897 |
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898 You can use patient identifiers by including the ``*`` within your |
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899 search. For example if you were searching for a name beginning with |
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900 ``Jones`` you can do:: |
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901 |
139 | 902 "PatientName":"Jones*" |
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903 |
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904 If you wanted to search for a name with the words ``Jo`` anywhere |
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905 within it you can do:: |
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906 |
139 | 907 "PatientName":"*Jo*" |
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908 |
138 | 909 To perform date searches you can specify within StudyDate a starting |
910 date and/or a before date. For example ``"StudyDate":"20180323-"`` | |
911 would search for all study dates after the specified date to | |
912 now. Doing ``"StudyDate":"20180323-20180325"`` would search for all | |
913 study dates between the specified date. | |
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914 |
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915 |
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916 Reviewing Level |
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917 ^^^^^^^^^^^^^^^ |
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918 |
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919 .. highlight:: bash |
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920 |
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921 :: |
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922 |
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923 $ curl --request GET --url http://localhost:8042/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0/level |
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924 |
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925 Will retrieve the level with which the query was performed, Study, |
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926 Series or Instance. |
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927 |
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928 |
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929 Reviewing Modality |
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930 ^^^^^^^^^^^^^^^^^^ |
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931 |
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932 .. highlight:: bash |
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933 |
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934 :: |
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935 |
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936 $ curl --request GET --url http://localhost:8042/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0/modality |
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937 |
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938 Will provide the modality name which the original query was performed against. |
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939 |
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940 |
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941 Reviewing Query |
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942 ^^^^^^^^^^^^^^^ |
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943 |
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944 .. highlight:: bash |
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945 |
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946 To retrieve information on what identifiers the query was originally |
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947 performed using you can use the query filter:: |
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948 |
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949 $ curl --request GET --url http://localhost:8042/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0/query |
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950 |
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951 |
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952 Reviewing Query Answers |
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953 ^^^^^^^^^^^^^^^^^^^^^^^ |
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954 |
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955 .. highlight:: bash |
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956 |
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957 You are able to individually review each answer returned by performing |
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958 a GET with the answers parameter:: |
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959 |
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960 $ curl --request GET --url http://localhost:8042/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0/answers |
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961 |
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962 You will get a JSON back with numbered identifiers for each answer you |
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963 received back. For example because we performed a Study level query we |
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964 received back 5 studies answers back. We are able to query each answer |
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965 for content details:: |
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966 |
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967 $ curl --request GET --url http://localhost:8042/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0/answers/0/content |
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968 |
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969 If there are content items missing, you may add them by adding that |
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970 identifier to the original query. For example if we wanted Modalities |
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971 listed in this JSON answer in the initial query we would add to the |
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972 POST body: ``"ModalitiesInStudy":""`` |
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973 |
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974 |
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975 Performing Retrieve (C-Move) |
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976 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
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977 |
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978 .. highlight:: bash |
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979 |
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980 You can perform a C-Move to retrieve all studies within the original |
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981 query using a post command and identifying the Modality (named in this |
207 | 982 example ``Orthanc``), to be one to in the POST contents:: |
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983 |
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984 $ curl --request POST --url http://localhost:8042/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0/retrieve --data Orthanc |
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985 |
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986 You are also able to perform individual C-Moves for a content item by |
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987 specifying that individual content item:: |
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988 |
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989 $ curl --request POST --url http://localhost:8042/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0/answers/0/retrieve --data Orthanc |
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990 |
207 | 991 If C-Moves take too long (for example, performing a C-Move of a big |
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992 study), you may run the request in :ref:`asynchronous mode <jobs>`, |
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993 which will create a job in Orthanc:: |
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994 |
207 | 995 $ curl --request POST --url http://localhost:8042/queries/5af318ac-78fb-47ff-b0b0-0df18b0588e0/retrieve \ |
996 --data '{"TargetAet":"Orthanc","Synchronous":false}' | |
997 | |
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998 |
207 | 999 .. highlight:: bash |
1000 | |
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1001 The answer of this POST request is the job ID taking care of the |
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1002 C-Move command, :ref:`whose status can be monitored <jobs-monitoring>` |
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1003 in order to detect failure or completion:: |
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1004 |
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1005 { |
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1006 "ID" : "11541b16-e368-41cf-a8e9-3acf4061d238", |
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1007 "Path" : "/jobs/11541b16-e368-41cf-a8e9-3acf4061d238" |
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1008 } |
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1009 |
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1010 |
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1011 |
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1012 .. _rest-find: |
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1013 |
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1014 Performing Finds within Orthanc |
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1015 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
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1016 .. highlight:: bash |
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1017 |
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1018 Performing a find within the local database of Orthanc is very similar |
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1019 to using Queries against DICOM modalities and the additional options |
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1020 listed above work with find also. When performing a find, you will |
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1021 receive the Orthanc ID's of all the matched items within your |
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1022 find. For example if you perform a study level find and 5 Studies |
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1023 match you will receive 5 study level Orthanc ID's in JSON format as a |
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1024 response:: |
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1025 |
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1026 $ curl --request POST --url http://localhost:8042/tools/find \ |
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1027 --data '{ |
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1028 "Level" : "Instance", |
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1029 "Query" : { |
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1030 "Modality" : "CR", |
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1031 "StudyDate" : "20180323-", |
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1032 "PatientID" : "*" |
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1033 } |
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1034 }' |
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1035 |
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1036 Setting the ``Expand`` field to ``true`` in the POST body of the |
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1037 query will automatically report details about each study:: |
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1038 |
313 | 1039 $ curl https://demo.orthanc-server.com/tools/find -d '{"Level":"Study","Query":{"PatientName":"KNIX"}}' |
1040 [ | |
1041 "b9c08539-26f93bde-c81ab0d7-bffaf2cb-a4d0bdd0" | |
1042 ] | |
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1043 $ curl https://demo.orthanc-server.com/tools/find -d '{"Level":"Study","Query":{"PatientName":"KNIX"},"Expand":true}' |
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1044 [ |
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1045 { |
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1046 "ID" : "b9c08539-26f93bde-c81ab0d7-bffaf2cb-a4d0bdd0", |
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1047 "IsStable" : true, |
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1048 "LastUpdate" : "20180414T091528", |
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1049 "MainDicomTags" : { |
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1050 "InstitutionName" : "0ECJ52puWpVIjTuhnBA0um", |
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1051 "ReferringPhysicianName" : "1", |
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1052 "StudyDate" : "20070101", |
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1053 "StudyDescription" : "Knee (R)", |
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1054 "StudyID" : "1", |
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1055 "StudyInstanceUID" : "1.2.840.113619.2.176.2025.1499492.7391.1171285944.390", |
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1056 "StudyTime" : "120000.000000" |
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1057 }, |
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1058 "ParentPatient" : "6816cb19-844d5aee-85245eba-28e841e6-2414fae2", |
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1059 "PatientMainDicomTags" : { |
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1060 "PatientID" : "ozp00SjY2xG", |
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1061 "PatientName" : "KNIX" |
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1062 }, |
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1063 "Series" : [ |
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1064 "20b9d0c2-97d85e07-f4dbf4d2-f09e7e6a-0c19062e", |
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1065 "edbfa0a9-fa2641d7-29514b1c-45881d0b-46c374bd", |
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1066 "f2635388-f01d497a-15f7c06b-ad7dba06-c4c599fe", |
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1067 "4d04593b-953ced51-87e93f11-ae4cf03c-25defdcd", |
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1068 "5e343c3e-3633c396-03aefde8-ba0e08c7-9c8208d3", |
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1069 "8ea120d7-5057d919-837dfbcc-ccd04e0f-7f3a94aa" |
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1070 ], |
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1071 "Type" : "Study" |
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1072 } |
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1073 ] |
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1074 |
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1075 Here is a sample REST API call to find the Orthanc identifiers of all |
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1076 the DICOM series generated by an imaging modality whose "Device Serial |
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1077 Number (0018,1000)" DICOM tag is equal to "123":: |
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1078 |
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1079 $ curl -X POST http://localhost:8042/tools/find -d '{"Level":"Series","Query":{"DeviceSerialNumber":"123"},"Expand":true}' |
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1080 |
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1081 If you are interested by a **list of several items** (in this case, in |
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1082 a list of serial numbers), just separate them with backslashes as |
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1083 would do with DICOM C-FIND:: |
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1084 |
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1085 $ curl -X POST http://localhost:8042/tools/find -d '{"Level":"Series","Query":{"DeviceSerialNumber":"123\\abc"},"Expand":true}' |
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1086 |
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1087 |
138 | 1088 |
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1089 Additional Options |
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1090 ^^^^^^^^^^^^^^^^^^ |
138 | 1091 .. highlight:: json |
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1092 |
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1093 You also have the ability to limit the responses by specifying a limit within the body of the POST message. For example:: |
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1094 |
138 | 1095 "Limit":4 |
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1097 |
216 | 1098 .. _changes: |
1099 | |
0 | 1100 Tracking changes |
1101 ---------------- | |
1102 | |
1103 .. highlight:: bash | |
1104 | |
1105 Whenever Orthanc receives a new DICOM instance, this event is recorded | |
1106 in the so-called "Changes Log". This enables remote scripts to react | |
1107 to the arrival of new DICOM resources. A typical application is | |
1108 **auto-routing**, where an external script waits for a new DICOM | |
1109 instance to arrive into Orthanc, then forward this instance to another | |
1110 modality. | |
1111 | |
1112 The Changes Log can be accessed by the following command:: | |
1113 | |
1114 $ curl http://localhost:8042/changes | |
1115 | |
1116 .. highlight:: json | |
1117 | |
1118 Here is a typical output:: | |
1119 | |
1120 { | |
1121 "Changes" : [ | |
1122 { | |
1123 "ChangeType" : "NewInstance", | |
1124 "Date" : "20130507T143902", | |
1125 "ID" : "8e289db9-0e1437e1-3ecf395f-d8aae463-f4bb49fe", | |
1126 "Path" : "/instances/8e289db9-0e1437e1-3ecf395f-d8aae463-f4bb49fe", | |
1127 "ResourceType" : "Instance", | |
1128 "Seq" : 921 | |
1129 }, | |
1130 { | |
1131 "ChangeType" : "NewSeries", | |
1132 "Date" : "20130507T143902", | |
1133 "ID" : "cceb768f-e0f8df71-511b0277-07e55743-9ef8890d", | |
1134 "Path" : "/series/cceb768f-e0f8df71-511b0277-07e55743-9ef8890d", | |
1135 "ResourceType" : "Series", | |
1136 "Seq" : 922 | |
1137 }, | |
1138 { | |
1139 "ChangeType" : "NewStudy", | |
1140 "Date" : "20130507T143902", | |
1141 "ID" : "c4ec7f68-9b162055-2c8c5888-5bf5752f-155ab19f", | |
1142 "Path" : "/studies/c4ec7f68-9b162055-2c8c5888-5bf5752f-155ab19f", | |
1143 "ResourceType" : "Study", | |
1144 "Seq" : 923 | |
1145 }, | |
1146 { | |
1147 "ChangeType" : "NewPatient", | |
1148 "Date" : "20130507T143902", | |
1149 "ID" : "dc65762c-f476e8b9-898834f4-2f8a5014-2599bc94", | |
1150 "Path" : "/patients/dc65762c-f476e8b9-898834f4-2f8a5014-2599bc94", | |
1151 "ResourceType" : "Patient", | |
1152 "Seq" : 924 | |
1153 } | |
1154 ], | |
1155 "Done" : true, | |
1156 "Last" : 924 | |
1157 } | |
1158 | |
1159 This output corresponds to the receiving of one single DICOM instance | |
1160 by Orthanc. It records that a new instance, a new series, a new study | |
1161 and a new patient has been created inside Orthanc. Note that each | |
1162 changes is labeled by a ``ChangeType``, a ``Date`` (in the `ISO format | |
25 | 1163 <https://en.wikipedia.org/wiki/ISO_8601>`__), the location of the |
0 | 1164 resource inside Orthanc, and a sequence number (``Seq``). |
1165 | |
1166 Note that this call is non-blocking. It is up to the calling program | |
1167 to wait for the occurrence of a new event (by implementing a polling | |
1168 loop). | |
1169 | |
1170 .. highlight:: bash | |
1171 | |
1172 This call only returns a fixed number of events, that can be changed | |
1173 by using the ``limit`` option:: | |
1174 | |
1175 $ curl http://localhost:8042/changes?limit=100 | |
1176 | |
1177 The flag ``Last`` records the sequence number of the lastly returned | |
1178 event. The flag ``Done`` is set to ``true`` if no further event has | |
1179 occurred after this lastly returned event. If ``Done`` is set to | |
1180 ``false``, further events are available and can be retrieved. This is | |
1181 done by setting the ``since`` option that specifies from which | |
1182 sequence number the changes must be returned:: | |
1183 | |
1184 $ curl 'http://localhost:8042/changes?limit=100&since=922' | |
1185 | |
1186 A `sample code in the source distribution | |
449 | 1187 <https://hg.orthanc-server.com/orthanc/file/default/OrthancServer/Resources/Samples/Python/ChangesLoop.py>`__ |
0 | 1188 shows how to use this Changes API to implement a polling loop. |
1189 | |
1190 | |
1191 Deleting resources from Orthanc | |
1192 ------------------------------- | |
1193 | |
1194 .. highlight:: bash | |
1195 | |
1196 Deleting patients, studies, series or instances | |
1197 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
1198 | |
1199 Deleting DICOM resources (i.e. patients, studies, series or instances) | |
1200 from Orthanc is as simple as using a HTTP DELETE on the URI of this | |
1201 resource. | |
1202 | |
1203 Concretely, you would first explore the resources that are stored in | |
1204 Orthanc :ref:`as explained above <rest-access>`:: | |
1205 | |
1206 $ curl http://localhost:8042/patients | |
1207 $ curl http://localhost:8042/studies | |
1208 $ curl http://localhost:8042/series | |
1209 $ curl http://localhost:8042/instances | |
1210 | |
1211 Secondly, once you have spotted the resources to be removed, you would | |
1212 use the following command-line syntax to delete them:: | |
1213 | |
1214 $ curl -X DELETE http://localhost:8042/patients/dc65762c-f476e8b9-898834f4-2f8a5014-2599bc94 | |
1215 $ curl -X DELETE http://localhost:8042/studies/c4ec7f68-9b162055-2c8c5888-5bf5752f-155ab19f | |
1216 $ curl -X DELETE http://localhost:8042/series/cceb768f-e0f8df71-511b0277-07e55743-9ef8890d | |
1217 $ curl -X DELETE http://localhost:8042/instances/8e289db9-0e1437e1-3ecf395f-d8aae463-f4bb49fe | |
1218 | |
1219 | |
712 | 1220 Starting with Orthanc 1.9.4, it is also possible to ``POST`` on the |
1221 new route ``/tools/bulk-delete`` to delete at once a set of multiple | |
1222 DICOM resources that are not related (i.e. that don't share any parent | |
1223 DICOM resource). A typical use case is to delete a list of DICOM | |
1224 instances that don't belong to the same parent patient/study/series. | |
1225 The list of the :ref:`Orthanc identifiers <orthanc-ids>` of the | |
1226 resources to be deleted (that may indifferently correspond to | |
1227 patients, studies, series or instances) must be provided in an | |
1228 argument ``Resources`` in the body of the request. Here is a sample | |
1229 call:: | |
1230 | |
1231 $ curl http://localhost:8042/tools/bulk-delete -d '{"Resources":["b6da0b16-a25ae9e7-1a80fc33-20df01a9-a6f7a1b0","d6634d97-24379e4a-1e68d3af-e6d0451f-e7bcd3d1"]}' | |
1232 | |
1233 | |
0 | 1234 Clearing log of changes |
1235 ^^^^^^^^^^^^^^^^^^^^^^^ | |
1236 | |
1237 :ref:`As described above <changes>`, Orthanc keeps track of all the | |
1238 changes that occur in the DICOM store. This so-called "Changes Log" | |
1239 is accessible at the following URI:: | |
1240 | |
1241 $ curl http://localhost:8042/changes | |
1242 | |
1243 To clear the content of the Changes Log, simply DELETE this URI:: | |
1244 | |
1245 $ curl -X DELETE http://localhost:8042/changes | |
1246 | |
1247 | |
155 | 1248 Log of exported resources |
1249 ^^^^^^^^^^^^^^^^^^^^^^^^^ | |
1250 | |
1251 For medical traceability, Orthanc can be configured to store a log of | |
1252 all the resources that have been exported to remote modalities:: | |
0 | 1253 |
1254 $ curl http://localhost:8042/exports | |
1255 | |
1256 In auto-routing scenarios, it is important to prevent this log to grow | |
1257 indefinitely as incoming instances are routed. You can either disable | |
1258 this logging by setting the option ``LogExportedResources`` to ``false`` | |
1259 in the :ref:`configuration file <configuration>`, or periodically | |
1260 clear this log by DELETE-ing this URI:: | |
1261 | |
1262 $ curl -X DELETE http://localhost:8042/exports | |
1263 | |
155 | 1264 NB: Starting with Orthanc 1.4.0, the ``LogExportedResources`` is set |
1265 to ``false`` by default. If the logging is desired, set this option to | |
1266 ``true``. | |
1267 | |
0 | 1268 |
1269 Anonymization and modification | |
1270 ------------------------------ | |
1271 | |
1272 The process of anonymizing and modifying DICOM resources is | |
1273 :ref:`documented in a separate page <anonymization>`. | |
1274 | |
1275 | |
1276 Further reading | |
1277 --------------- | |
1278 | |
1279 The examples above have shown you the basic principles for driving an | |
1280 instance of Orthanc through its REST API. All the possibilities of the | |
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1281 API have not been described: |
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1282 |
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1283 * Advanced features of the REST API can be found on :ref:`another page |
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1284 <rest-advanced>`. |
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1285 * A :ref:`FAQ entry <rest-samples>` lists where you can find more |
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1286 advanced samples of the REST API of Orthanc. |
577
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1287 * A :ref:`short reference of the REST API of Orthanc <cheatsheet>` is |
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1288 part of the Orthanc Book. |
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1289 * The full documentation of the REST API in the OpenAPI/Swagger format |
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1290 is `available online <https://api.orthanc-server.com/>`__. This |
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1291 reference is automatically generated from the source code of |
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1292 Orthanc. |