Hi Paola, that looks pretty bad. What version are you running? You can try using rhe expert opts to set the g/w intensities, or drop the dataset on our site and we'll take a look. cheers Bruce
On Tue, 28 Dec 2010, Paola Valsasina wrote: > > > Dear Freesurfer experts, > > > > I have tried to analyze with Freesurfer a dataset of images acquired with a > 3D T1 sequence without inversion pulse (unfortunately, it is simply a FFE > sequence and not a MP-RAGE). Contrast between grey and white matter is not > optimal in this image, and when I run -autorecon2 step I obtain a very bad > output (attached). "white/grey" surface seems to be where the pial surface > is expected to be, and pial surface is in the middle of csf. > > > > In your opinion, is it possible to obtain meaningful results with these > images or not? Is there any setting of post-processing that I can change in > order to obtain better surfaces? > > Thank you for any suggestion > > Kind regards, > > Paola > > > > > ----------------------------------------------------------------------------------- > SOSTIENI ANCHE TU LA RICERCA DEL SAN RAFFAELE. > NON C'E' CURA SENZA RICERCA. > Per donazioni: ccp 42437681 intestato a Fondazione Arete' Onlus del San > Raffaele. > Per informazioni: tel. 02.2643.4461 - www.sanraffaele.org > _______________________________________________ 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.