The last few days, I found an awesome viewer for histopathological whole slide images called SLIM (GitHub - ImagingDataCommons/slim: Interoperable web-based DICOM slide microscopy viewer and annotation tool, https://doi.org/10.1148/rg.230180).
Even though Orthanc already offers a bunch of viewers also working with WSI, none is able to annotate regions of interest and display these metadata from DICOM files.
Thus, the DICOM web interface can be used (together with some reverse proxy configuration) to fetch files from Orthanc which is still not that smooth compared to the integrated viewers in Orthanc where you can visualize an image out of the PACS.
Is there a plan or can I assist somehow to integrate SLIM as plugin? This would enable new features for pathology.
There is ongoing work to add annotations to the official whole-slide imaging plugin for Orthanc, in the context of pedagogy for biology.
In general, the difficulty with annotations is that they are highly dependent upon the considered workflow (multiple users, long-term storage as DICOM or metadata, research vs. clinics,…). This is not specific to histology, but a global problem with medical imaging.
That being said, feel free to work on packaging SLIM as an Orthanc plugin. We already do this for OHIF, Kitware VolView, and Stone Web viewer. You can get inspiration from the source code of these plugins. It would be great to include support for even more third-party viewers in Orthanc.
thanks for your reply. Having a WSI viewer which is able to visualize segmentations and annotations from DICOM files seems very desirable to me.
However, I created a Docker Compose file containing Orthanc and SLIM viewer connected via DICOM web service: GitHub - cpheidelberg/slim-orthanc
However, the SLIM viewer has a bug where I cannot create annotations as SCOORD3D object. Thus, there is no advantage over using the existing OHIF or standard WSI viewer.
I will keep track of this interesting viewer.