Hello, We are starting to use FreeSurfer v4.5.0 for segmentation purposes and after running freesurfer and correcting the wm surfaces following the online instructions we still get abnormal surfaces (wm looks better after corrections, but gray matter still the same). We are suspecting the problem to be due to intensity problem in the original T1-weighted volumes and thus we would like to consult with you the T1 sequence we use to know if there is what we could fix/change about that.
T1-weighted scans were imaged using 3D FSPGR BRAVO sequence (TR 12.1ms, TE 5.2 ms, slice thickness 1.0 mm, FOV 24.0 cm, matrix 256 x 256, and flip angle 20 ยบ, parallel imaging factor 2, NEX 1). Thanks a lot in advance, Ahmed -- Ahmed Abou Elseoud MRI Research Unit, Department of Diagnostic Radiology, Oulu University Hospital(OYS), Finland. _______________________________________________ Freesurfer mailing list [email protected] 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.
