Bruce, Thanks for the input. We use a 32 channel head coil with two elements: an anterior one, and a posterior one. Thus, half of the coil was inactive. I ran the subject through the standard recon -all just to see what happened, and it looks like there were some significant errors (see attached image as an example). I will have to try it with anterior control points on and see if we get a better result. In the end, it looks like we may just have to bring this subject back in to re-do the scan.
Thanks! James On Sun, Jun 11, 2017 at 6:50 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu> wrote: > Hi James > > it's hard to say. How many coil elements were off? You could try with > anterior control points, but you might not be able to include this subject > in a group study > > cheers > Bruce > > On Sun, 11 Jun 2017, Gullickson, > James wrote: > > > Hello all, > > We have a subject whose T1s were collected without the anterior head coil > > engaged, due to a technical error. The posterior coil collected signal. > This > > was on a Siemens Prisma 3T scanner. Would you expect Freesurfer to still > be > > able to process/segment this data accurately, or is it a lost cause at > this > > point? > > > > Thanks, > > > > James Gullickson > > > > > _______________________________________________ > 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. > >
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