it seems likely you will want to rescan.
cheers Bruce
On Mon, 12 Jun 2017, Gullickson, James wrote:
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 fischl@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 > >
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