External Email - Use Caution I apologize for the confusion. Whether I use the -hires or -conf2hires flag the subcortical segmentations look good.
The cortical segmentations have some issues in the ventral medial area (see snapshot below), which is likely caused by difficulty in FS delineating WM superior to the gyrus rectus. I'm not sure how to correct this so I was thinking the higher resolution data may lead to a better WM segmentation? Is my thinking correct? If so, which flag is best? Jim -----Original Message----- From: freesurfer-boun...@nmr.mgh.harvard.edu <freesurfer-boun...@nmr.mgh.harvard.edu> On Behalf Of Greve, Douglas N.,Ph.D. Sent: Thursday, October 24, 2019 5:37 PM To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] recon-all at native resolution You mean the surfaces using -hires look fine? If so, then continue to use -hires On 10/24/19 6:32 PM, Alexopoulos, Dimitrios wrote: > External Email - Use Caution > > The cortical parcellations in the aseg and aparc+seg have some issues in the > orbital prefrontal regions and we're were hoping that the higher resolution > images would help. The surfaces look fine. > > We should use the -hires flag instead in this scenario? > > Thx. > > -----Original Message----- > From: freesurfer-boun...@nmr.mgh.harvard.edu > <freesurfer-boun...@nmr.mgh.harvard.edu> On Behalf Of Greve, Douglas N.,Ph.D. > Sent: Thursday, October 24, 2019 5:06 PM > To: freesurfer@nmr.mgh.harvard.edu > Subject: Re: [Freesurfer] recon-all at native resolution > > oh, sorry, yes it is. The surfaces are placed on the high res volumes, > but the aseg will be at 1mm. If you need the aseg at highres, then you > will need to use the -hires flag (but the surfaces will suffer) > > On 10/24/19 2:55 PM, Alexopoulos, Dimitrios wrote: >> External Email - Use Caution >> >> Doug, >> >> I copied over files and ran using the -conf2hires flag, however, the >> orig.mgz/brainmask.mgz are resampled to 1mm isotropic not the native 0.8mm. >> >> Using the -hires flag maintains the orig.mgz/brainmask.mgz at native 0.8mm >> resolution. >> >> Is this expected when running -conf2hires? >> >> Jim >> >> -----Original Message----- >> From: freesurfer-boun...@nmr.mgh.harvard.edu >> <freesurfer-boun...@nmr.mgh.harvard.edu> On Behalf Of Greve, Douglas N.,Ph.D. >> Sent: Tuesday, October 15, 2019 11:54 AM >> To: freesurfer@nmr.mgh.harvard.edu >> Subject: Re: [Freesurfer] recon-all at native resolution >> >> better to use a patch I created for the HCP, see >> https://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/6.0.0-patch/hc >> p >> /readme >> >> >> On 10/15/19 12:13 PM, Alexopoulos, Dimitrios wrote: >>> External Email - Use Caution >>> >>> We have data acquired at 0.8mm isotropic and would like to maintain >>> this resolution in the processing stream rather than FS resampling to 1mm. >>> >>> Is the command to do this 'recon-all -hires -all'? >>> >>> Are there any drawback to doing this? >>> >>> Jim >>> >>> -------------------------------------------------------------------- >>> - >>> - >>> -- >>> >>> The materials in this message are private and may contain Protected >>> Healthcare Information or other information of a sensitive nature. >>> If you are not the intended recipient, be advised that any >>> unauthorized use, disclosure, copying or the taking of any action in >>> reliance on the contents of this information is strictly prohibited. >>> If you have received this email in error, please immediately notify >>> the sender via telephone or return mail. >>> >>> >>> _______________________________________________ >>> 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 materials in this message are private and may contain Protected >> Healthcare Information or other information of a sensitive nature. 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