I have found the dcm2nii output to work very well and not require any manual
adjustments.
Peace,
Matt.
-----Original Message-----
From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf
Of Andreas Bartsch
Sent: Thursday, May 14, 2009 3:50 AM
To: [log in to unmask]
Subject: [FSL] AW: [FSL] bvecs in nifti space of in dicom space?
Hi,
probably the latter. I guess the former are in magnet (xyz) not patient
resp. phase-read-slice coordinates (prs). However, you need to figure out
yourself to be 100% sure. If you have not angulated your acquisition, the
values should be the same.
Cheers-
Andreas
________________________________________
Von: FSL - FMRIB's Software Library [[log in to unmask]] im Auftrag von
Mareike Menz [[log in to unmask]]
Gesendet: Donnerstag, 14. Mai 2009 10:14
An: [log in to unmask]
Betreff: [FSL] bvecs in nifti space of in dicom space?
Dear FSLers,
we noticed that the bvecs differ in dependence of the readout method.
An inhouse script reads out the dicom entries as does spm with the helper
from the diffusion
toolbox. We already noticed a deviance of these to the gradient table our
physicist put in but this
was rather small (maybe due to rounding).
Now we found out that the dcm2nii output provides yet another gradient
table. If I understood Chris
Rorden correctly, this is, because dcm2nii reports the bvecs in NIFTI-space.
Which one should be used for dtifit, and even more important for bedpostx?
Thanks for your answer,
Mareike
--
Mareike Menz
NeuroImage Nord Lübeck
University Medical Center Hamburg-Eppendorf, Bldg. S10
Martinistr. 52
20246 Hamburg
Germany
+49 40 7410 53683
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