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IDProjectCategoryView StatusLast Update
0003867Slicer4Core: Diffusion and Tractography (Any modules)public2017-07-25 11:10
ReporterlaurenAssigned Toinorton 
PrioritynormalSeveritymajorReproducibilityalways
Status assignedResolutionopen 
Product VersionSlicer 4.3.1 
Target VersionbacklogFixed in Version 
Summary0003867: slice gap is ignored on Siemens DWI
Description

There was a change between Slicer 4.1.1 and Slicer 4.3.1, where the gap between slices is now ignored. This occurs in Siemens DWI DICOM in our experience, not GE. Screenshots are attached demonstrating the problem (the voxel spacing is incorrect in Slicer 4.3.1, making the head look squished).

I have asked Jerry to test this one more time in today's nightly because I didn't have time to submit the bug report when he first made the screenshots (attached)

TagsNo tags attached.

Activities

2014-10-09 10:36

 

2014-10-09 10:37

 

2014-10-09 10:38

 

lauren

lauren

2015-04-08 07:13

developer   ~0013010

I have realized this is a bug in DWIConverter module, not Slicer core. Updating this to reflect that. The bug is still present in Slicer nightly today (April 8, 2015)

lauren

lauren

2015-04-21 13:37

developer   ~0013015

We scanned a phantom with and without slice gap to provide test data for this bug. See new screenshot. The test dataset is located here for short-term download access:

https://www.dropbox.com/s/vtu8cxhnj1o1gp3/phantom_dwi_test_data.zip?dl=0

2015-04-21 13:37

 

slice_gap_ignored.png (106,169 bytes)
slice_gap_ignored.png (106,169 bytes)

Issue History

Date Modified Username Field Change
2014-10-09 10:36 lauren New Issue
2014-10-09 10:36 lauren Status new => assigned
2014-10-09 10:36 lauren Assigned To => jcfr
2014-10-09 10:36 lauren File Added: Slicer 4.3.1_Linux_nightly build.png
2014-10-09 10:36 lauren File Added: Slicer 4.3.1_Linux_old.png
2014-10-09 10:37 lauren File Deleted: Slicer 4.3.1_Linux_old.png
2014-10-09 10:37 lauren File Added: Slicer 4.3.1_Window_nightly built.png
2014-10-09 10:38 lauren File Added: Slicer 4_1_1_Window_old_correct_dims.png
2015-04-08 07:13 lauren Note Added: 0013010
2015-04-08 07:13 lauren Category Core: Base Code => Module DWIConverter
2015-04-21 13:37 lauren Note Added: 0013015
2015-04-21 13:37 lauren File Added: slice_gap_ignored.png
2015-11-11 13:40 jcfr Assigned To jcfr => inorton
2015-11-11 13:40 jcfr Target Version => Slicer 4.5.1
2016-02-29 14:11 jcfr Category Module DWIConverter => Module DWIConverter (Provided by BRAINSTools)
2016-03-01 10:20 jcfr Category Module DWIConverter (Provided by BRAINSTools) => Core: Diffusion & Tractography (Any modules)
2016-06-20 14:14 jcfr Category Core: Diffusion & Tractography (Any modules) => Core: Diffusion and Tractography (Any modules)
2016-10-12 02:56 jcfr Target Version Slicer 4.5.1 => Slicer 4.7.0
2017-07-25 11:10 inorton Target Version Slicer 4.7.0 => backlog