0004465: DICOM Browser suddenly cannot load RT structure sets (Segmentation) - MantisBT

ID	Project	Category	View Status	Date Submitted	Last Update

0004465	Slicer4	Module DICOM	public	2017-10-20 05:26	2017-12-23 10:04

Reporter	peeken	Assigned To	pieper
Priority	urgent	Severity	major	Reproducibility	always
Status	closed	Resolution	fixed
Product Version	Slicer 4.6.2
Target Version		Fixed in Version

Summary	0004465: DICOM Browser suddenly cannot load RT structure sets (Segmentation)
Description	After checking a whole lot of DICOM files of CT and MRI images + the respective segmentation and exporting them to .nrrd., suddenly this error keeps occurring: "Exception thrown in event: /Users/kitware/Dashboards/Nightly/Slicer-0-build/ITKv4/Modules/IO/ImageBase/include/itkImageFileReader.hxx:143: Could not create IO object for reading file /Users/janpeeken/Documents/Science/Radiomics/Sarcomas/Radiomicspeeken/Radiomics anonym/S37 - S37/Rt 10_Beine (Erwachsener)/RT Struct Series - 1/IM-0001-0001-0001.dcm Tried to create one of the following: NiftiImageIO NrrdImageIO GiplImageIO JPEGImageIO GDCMImageIO BMPImageIO LSMImageIO PNGImageIO TIFFImageIO VTKImageIO StimulateImageIO BioRadImageIO MetaImageIO MRCImageIO MINCImageIO MGHImageIO MRMLIDImageIO You probably failed to set a file suffix, or set the suffix to an unsupported type." It happens with every RTstructure set file, even with files that were loaded properly before. As consequence no Segmentations are loaded. Reinstallation did not change anything. What can I do, to fix this? Thank you very much.
Tags	No tags attached.

pieper 2017-10-20 07:47 administrator ~0015324	Can you provide more details: you have been running Slicer 4.6.2 with SlicerRT and at some point data that used to load no longer loads? Did you change anything in the Slicer installation? Did anything else on your machine change, like installing some other software package? Did you try the new Slicer 4.8 release with the latest SlicerRT?

peeken 2017-10-20 09:31 reporter ~0015326	Thank you very much for your fast reply. Indeed the problem occurred suddenly while working on files, so I cannot identify any changes on the computer (its a mac). I reinstalled the nightly build 4.9 and the stable build 4.8, but no change. SlicerRT was always installed. I installed Slicer 4.8 with SlicerRT on a separate windows computer. Here it seems to work. Any idea how I could fix the problem on the mac. I am glad to provide more information as needed.

pieper 2017-10-20 17:24 administrator ~0015328	Hmm, interesting - possibly something has changed an environment variable on your mac or otherwise interfered with the loading of the image reader libraries. That's why I suspected maybe another ITK based package or similar. Follow up questions: is it only the RT files that won't load? that is, do regular CT or MR files load okay? What format are they (dicom or other)? Could you try making another user account on the mac to see if it's your account or something on the computer? You could also try deleting the Slicer settings files (to find them see https://www.slicer.org/wiki/Documentation/Nightly/SlicerApplication/ApplicationSettings#Settings_file_location)

pieper 2017-12-23 10:04 administrator ~0015469	Cannot reproduce

Date Modified	Username	Field	Change
2017-10-20 05:26	peeken	New Issue
2017-10-20 05:26	peeken	Status	new => assigned
2017-10-20 05:26	peeken	Assigned To	=> pieper
2017-10-20 07:47	pieper	Status	assigned => feedback
2017-10-20 07:47	pieper	Note Added: 0015324
2017-10-20 09:31	peeken	Note Added: 0015326
2017-10-20 09:31	peeken	Status	feedback => assigned
2017-10-20 17:24	pieper	Note Added: 0015328
2017-12-23 10:04	pieper	Status	assigned => closed
2017-12-23 10:04	pieper	Resolution	open => fixed
2017-12-23 10:04	pieper	Note Added: 0015469