yes On 02/25/2013 03:23 PM, sha...@nmr.mgh.harvard.edu wrote: > We always collect a low resolution whole brain mprage structural scan > before the functional scans to help us position our slices. Can I use > that? > >> You do not need another one unless you think that the brain has changed >> in some way between when you collected the anat and the func. Also, if >> you are going to acquire a partial field of view (ie, only part of the >> brain), make sure you get a full brain acq of something to help in >> registration (--int flag with BBR). This can really be anything, eg, a >> single time point from a "normal" resolution fMRI, but it could also be >> an anatomical if you wanted to collect that. >> doug >> >> >> On 02/25/2013 02:39 PM, SHAHIN NASR wrote: >>> Hi, >>> We are planning to collect high resolution _functional_ MRI for a >>> group of subjects with voxel size smaller than 1 mm. For these >>> subjects, we already have reconstructed _anatomical _scans with 1 mm >>> voxel size. The question is, do we need to re-collect _anatomical_ >>> scans for these subjects with smaller voxel size (e.g. 0.5 x 0.5 x >>> 0.5) or we can still use the old anatomical data for co-registration >>> with freesurfer. >>> >>> P.S.: We usually analyze our subjects in native space but technically >>> we can do this in fsaverage space. So, we only need this >>> co-registration for pre-processing and mapping fMRI data to fsaverage >>> space. >>> >>> Regards >>> >>> >>> -- >>> Shahin Nasr >>> >>> PhD in Cognitive Neuroscience >>> Martinos Imaging Center, MGH >>> Harvard Medical School >> -- >> Douglas N. Greve, Ph.D. >> MGH-NMR Center >> gr...@nmr.mgh.harvard.edu >> Phone Number: 617-724-2358 >> Fax: 617-726-7422 >> >> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting >> FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html >> Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ >> >> >> >
-- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ 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.
