Hello, I have come across a strange problem with wb_view where an MPRAGE image is not displayed correctly. No image data is shown on screen, except for one column of pixels in the LR-IS view. It is not possible to navigate through the image as the "slice indices/coords" tab gives 0,0,0 values in the P C A boxes. Other popular viewers (fslview, freeview, mrview), have no problem viewing the image though. The functional volumes from the same subject, and converted from DICOM with the same tools, also have some issues in wb_view. The scaling of the image seems wrong (e.g. stretched out in the z-direction) and scrolling trough the images using the "slice indices/coords" box results in some very strange behavior.
DICOM images were converted by the SPM MATLAB tools and alternatively by the conversion tool from the mrtrix3 package. Both conversion methods have the same problems in wb_view, and no problems in other viewers. The DICOM data is from a Siemens Prisma 3T scanner. Can't say if this problem is specific to wb_view 1.2.0, as I don't have access to an older version at the moment. Thx, -Maarten Below is the nifti-information from wb_command T1: native endian: true sizeof_hdr: 348 magic: n+1 datatype: 512 bitpix: 16 dim[0]: 3 dim[1]: 256 dim[2]: 256 dim[3]: 192 pixdim[0]: 1 pixdim[1]: 1 pixdim[2]: 1 pixdim[3]: 1 vox_offset: 352 scl_slope: 1 scl_inter: 0 sform_code: 1 srow_x: 0 0 1 -92.4734 srow_y: -1 0 0 155.054 srow_z: 0 -1 0 172.92 qform_code: 1 quatern_b: -0.5 quatern_c: 0.5 quatern_d: -0.5 qoffset_x: -92.4734 qoffset_y: 155.054 qoffset_z: 172.92 xyzt_units: 10 intent_code: 0 intent_name: 0 extensions FMRI: native endian: true sizeof_hdr: 348 magic: n+1 datatype: 512 bitpix: 16 dim[0]: 4 dim[1]: 100 dim[2]: 100 dim[3]: 63 dim[4]: 226 pixdim[0]: 1 pixdim[1]: 2 pixdim[2]: 2 pixdim[3]: 2 pixdim[4]: nan vox_offset: 352 scl_slope: 1 scl_inter: 0 sform_code: 1 srow_x: -1.9993 5.02426e-08 -0.0528384 100.782 srow_y: 0.00752309 -1.97962 -0.284661 107.996 srow_z: -0.0523001 -0.284761 1.97893 -18.66 qform_code: 1 quatern_b: -0.0131771 quatern_c: -0.0713659 quatern_d: 0.997363 qoffset_x: 100.782 qoffset_y: 107.996 qoffset_z: -18.66 xyzt_units: 10 intent_code: 0 intent_name: 0 extensions _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
