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+What DICOM viewer is compatible with Orthanc?
+=============================================
+
+Basically, any viewer that supports :ref:`DICOM query/retrieve
+<query-retrieve>` should be compatible with Orthanc.
+
+Because the Orthanc project is focused on the promotion of free
+software for medical imaging, we cannot keep track of the list of
+proprietary DICOM viewers that are compatible with Orthanc. Here is a
+list of free and open-source viewers that are known to be compatible
+with Orthanc (do not hesitate to `warn us
+<mailto:s.jodogne@gmail.com>`__ about other compatible FOSS):
+
+* `Horos <http://www.horosproject.org/>`__.
+* `Gingko CADx <http://www.ginkgo-cadx.com/>`__ (a :ref:`configuration
+  guide <ginkgo-cadx>` is available).
+* `3D Slicer <https://www.slicer.org/>`__.
+* `medInria <https://med.inria.fr/>`__.
+* `Aeskulap <http://aeskulap.nongnu.org/>`__.
+* `OsiriX <http://www.osirix-viewer.com/>`__ (note however that the
+  openness of this particular software is `currently subject to
+  discussion
+  <http://blog.purview.net/an-open-letter-to-the-osirix-community>`__).
+
+Make also sure to check out the following official extensions to Orthanc:
+
+* `Web viewer plugin <http://www.orthanc-server.com/static.php?page=web-viewer>`__.
+* `ImageJ extension <http://www.orthanc-server.com/static.php?page=imagej>`__.
+
+As far as Sébastien Jodogne is concerned, he uses the Web viewer
+plugin and the ImageJ extension for simple analysis tasks. For more
+intensive 3D viewing, he uses Ginkgo CADx. Finally, for advanced
+usages (such as PET-CT fusion or contouring), he switches to 3D
+Slicer.
+
+If you face problems when configuring DICOM networking, make sure to
+follow the :ref:`troubleshooting guide <dicom>`.