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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