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+---
+layout: pw44-project
+
+permalink: /:path/
+
+project_title: Adding DICOM Support Information To Extension Manager
+category: DICOM
+presenter_location: 
+
+key_investigators:
+
+- name: Kyle Sunderland
+  affiliation: Queen's University
+  country: Canada
+
+- name: Andrey Fedorov
+  affiliation: BWH
+  country: USA
+
+- name: Andras Lasso
+  affiliation: Queen's University
+  country: Canada
+
+---
+
+# Project Description
+
+<!-- Add a short paragraph describing the project. -->
+
+
+Currently DICOM support in extensions is written to a json file in the slicer repo ([DICOMExtensions.json](https://github.com/Slicer/Slicer/blob/main/Modules/Scripted/DICOM/DICOMExtensions.json)), however this information is not frequently updated as new extensions are added, unmaintained extensions removed, and additional modality support added to extensions.
+
+
+
+## Objective
+
+<!-- Describe here WHAT you would like to achieve (what you will have as end result). -->
+
+
+1. Add additional metadata to the extension index to describe DICOM support implemented in each extension.
+2. During DICOM import if no DICOM plugins are able to load the modality, then query the list of available extensions to find an extension that can import the data.
+
+
+
+## Approach and Plan
+
+<!-- Describe here HOW you would like to achieve the objectives stated above. -->
+
+
+1. Update [Slicer Package Manager](https://github.com/girder/slicer_package_manager) to handle additional DICOM support metadata
+    - This can be done by specifying a [rule-engine](https://pypi.org/project/rule-engine/) string that can be used to define extension compatibility with Modality and SOPClassUID.
+    - Ex:
+    ```"(Modality == 'SEG') or (SOPClassUID == '1.2.840.10008.5.1.4.1.1.30') or (Modality == 'SR' and (SOPClassUID == '1.2.840.10008.5.1.4.1.1.88.22' or SOPClassUID == '1.2.840.10008.5.1.4.1.1.88.33'))"```
+3. Update 3D Slicer core to query the list of available extensions to find an extension that can handle the current modality.
+4. Integrate this PR with other efforts to update the extension manager (extensions tiers, multiple categories, etc.).
+
+
+## Progress and Next Steps
+
+<!-- Update this section as you make progress, describing of what you have ACTUALLY DONE.
+     If there are specific steps that you could not complete then you can describe them here, too. -->
+
+
+1. Describe specific steps you **have actually done**.
+
+
+
+
+# Illustrations
+
+<!-- Add pictures and links to videos that demonstrate what has been accomplished. -->
+
+
+_No response_
+
+
+
+# Background and References
+
+<!-- If you developed any software, include link to the source code repository.
+     If possible, also add links to sample data, and to any relevant publications. -->
+
+
+https://github.com/girder/slicer_package_manager
+https://pypi.org/project/rule-engine/
+