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1 .. _dcmtk-tricks:
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2
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3 Some tricks with DCMTK
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4 ======================
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5
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6 .. contents::
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7 :depth: 3
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8
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9 Sending uncommon or recent SOP class UIDs
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10 -----------------------------------------
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11
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12 On many systems, the ``storescu`` command from the `DCMTK project
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13 <https://support.dcmtk.org/docs/storescu.html>`__ is not configured
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14 out-of-the-box to send uncommon/recent SOP class UIDs or transfer
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15 syntaxes. You might have to fine-tune the default configuration file
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16 of ``storescu`` in order to be able to send e.g. MPEG4 videos or
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17 breast tomosynthesis images.
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18
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19 .. highlight:: text
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20
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21 For instance, here is the result of sending one MPEG4 video on a
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22 Ubuntu 18.04 box::
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23
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24 $ storescu localhost 4242 XC000000.dcm
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25 E: No presentation context for: (VVp) 1.2.840.10008.5.1.4.1.1.77.1.4.1
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26 E: Store SCU Failed: 0006:0208 DIMSE No valid Presentation Context ID
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27
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28 This error message is unrelated to Orthanc (especially if you have set
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29 the :ref:`configuration option <configuration>`
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30 ``UnknownSopClassAccepted`` to ``true``). To properly adapt the
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333
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31 configuration file, first determine the value of the DICOM tag
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32 ``SOPClassUID`` (0008,0016) and the transfer syntax of the file, which
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33 can be done by using the ``dcm2xml`` command-line tool::
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332
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34
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35 $ dcm2xml XC000000.dcm | grep -E 'data-set xfer|"SOPClassUID"'
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36 <data-set xfer="1.2.840.10008.1.2.4.102" name="MPEG-4 AVC/H.264 High Profile / Level 4.1">
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37 <element tag="0008,0016" vr="UI" vm="1" len="32" name="SOPClassUID">1.2.840.10008.5.1.4.1.1.77.1.4.1</element>
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38
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39 Secondly, create a copy of the default ``storescu.cfg`` configuration
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40 file, e.g. on Ubuntu 18.04::
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41
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42 $ cp /etc/dcmtk/storescu.cfg /tmp/storescu.cfg
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43
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44 Edit this file so as to replace one of the 128 preconfigured
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45 presentation contexts, using this information::
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46
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47 $ diff /etc/dcmtk/storescu.cfg storescu.cfg
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48 198c198
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49 < PresentationContext128 = VideoPhotographicImageStorage\MPEG2
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50 ---
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51 > PresentationContext128 = 1.2.840.10008.5.1.4.1.1.77.1.4.1\MPEG4
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52
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53 Obviously, you can replace more predefinitions if other pairs of SOP
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54 class UID and transfer syntax are needed. Finally, run ``storescu``
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55 using this new configuration::
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56
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57 $ storescu -xf /tmp/storescu.cfg Default localhost 4242 XC000000.dcm
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58
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59 Note that the ``storescu`` command from the `dcm4che project
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60 <https://www.dcm4che.org/>`__ might be more easy to use in such
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61 situations.
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