does NIFTI support the MR parameters? I'm not sure it does. I suspect that 50 is correct and not 50.000000745058060 (can you imagine setting that on the console)? On Tue, 28 Aug 2012, dgw wrote:
> Hi, > > I'm not sure if this is a bug report or a feature request. I have been > using mri_convert to convert dicoms to nii.gz and mgz files, and I > have noticed some discrepancies when reading the volumes in with > MRIread in either matlab or octave. The volumes differ in their > support of the flip angle, tr, te, and ti fields (I realize some of > this may be due to file type differences). Thought the standard output > of mri_convert shows the expected values. > > In the mgz file the TR seems to be rounded i.e. > 50 instead of 50.000000745058060 in the nii.gz > > In the mgz file the flip angle and te are recorded > FA 0.52.... while in the nii.gz it is 0 > te 10.39... while in the nii.gz it is 0 > > The ti value appears strange to me in the mgz > ti = -1 while in the nii.gz it is 0 > > I have generated two files using mri convert off of the same MR volume > as a test case: > /cluster/hbot/agario_p2_2/dcm/020_t1_fl2d_tra_TEMP/004/877000-000020-000003.dcm > > /cluster/hbot/agario_p2_2/dcm/020_t1_fl2d_tra_TEMP/004/volume.nii.gz > > /cluster/hbot/agario_p2_2/dcm/test.mgz > > These files were generated using /usr/local/freesurfer/stable5_1_0/ > > Thanks, > D > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
