Try importing and loading all sample datasets

[cpinter]

Datasets: https://pocus.cs.queensu.ca/#collection/5cc8811601d4930406c40465

Fix errors that may occur.

Migrated from https://app.assembla.com/spaces/slicerrt/tickets/402-try-importing-and-loading-all-sample-datasets/details

[cpinter]

All the datasets have been tested for loading

• Failed to read
  • Non-issue:
  • Unsupported data types in general: ion plans, beams containing multi-leaf collimators
  • Empty datasets: in some studies the RTPLAN contained no beams or the RTSTRUCT no contours
  • Need to be fixed
  • ITK scalar image reading fails (none of the ITK readers are able to read the actual image data): aw-4.4-foot (CT, scout), corvus-6.2.2-phantom (CT, dose, RT images), xio-4.33.02-phantom-chest, xio-4.60.00-phantom-chest/t50, (CT, dose), xio-4.60.00- (CT, dose, RT image), xio-4.64-phantom-prostate-beams- (CT, dose)
• Loaded fine, but issues when processing:
  • Triangulation issues when converting from planar contours to closed surface: xio-4.64-phantom-prostate-beams-ap10*, xio-4.64-phantom-prostate-beams-iao10, xio-4.64-phantom-prostate-beams-llat10

[cpinter]

The abovementioned ITK issue has been fixed in this PR: https://github.com/InsightSoftwareConsortium/ITK/pull/1153 Issue can be closed if PR is integrated and Slicer updated to include the fix.

[cpinter]

The ITK changes are now included in the Slicer build and I confirmed that the problematic datasets now load fine.