Instead needing to recompute them every time via gradient direction (/magnitude),
provide a std::vector<int> GetBValues() Method, that returns all b-values corresponding to an image.
Use this list, to re-write the IVIM Plugin, to counter a bug that occurs when DICOMs do not have direction information listed (isotropic diffusion).
| Status | Assigned | Task | ||
|---|---|---|---|---|
| Resolved | None | T15887 Add vector of B-Values of image stack to mitk::DiffusionImages | ||
| Resolved | None | T16059 IVIM Plugin causes crash |
New remote branch pushed: bug-15887-AddBValuesVectorToMITKDiffusionImagesMakeIVIMReconstUseThisVector
this is needed, since else data sets from newer siemens scanners cannot be evaluated any more.
Please take a look at the bValueMap containing all BValues and corresponding gradient direction indices.
Jonas and I talked about the solution.
The fix is now, to adapt the gradient direction vector to (1,1,1) when this (dicom) field is empty. this way the already existing bvalues map is still used.
and no changes in the IVIM plugin are needed, only the DICOM reader is modified.
[5635cc]: Merge branch 'bug-15887-DealWithMissingGradDirs-Integration'
2013-09-20 13:03:10 Christian Weber [eb247a]
Merge branch 'bug-15887-DealWithMissingGradDirs' into bug-15887-DealWithMissingGradDirs-Integration
2013-09-20 12:44:04 Christian Weber [66f06a]
adapt gradient when none are supplied
[a02706]: Merge branch 'bug-15887-FixBrokenCheck'
2013-10-15 19:21:07 Christian Weber [661a97]
do not check for b-val == zero!!!
[0f0a08]: Merge branch 'bug-15887-FixBrokenCheck'
2013-10-16 15:31:06 Christian Weber [bcdab3]
assure b >0 for gradient correction