Re: [Freesurfer] Motion correction for SPACE FLAIR

2014-01-05 Thread Bruce Fischl
Hi Octavian it's not so easy to reduce the bandwidth in the T2-space sequences, but certainly you can try. Geometry-matched just means that the FOV and matrix sizes are the same. cheers Bruce On Fri, 3 Jan 2014, Octavian Lie wrote: Dear Bruce, Best wishes for 2014! I will heed your advice

Re: [Freesurfer] Motion correction for SPACE FLAIR

2014-01-03 Thread Octavian Lie
Dear Bruce, Best wishes for 2014! I will heed your advice and cc to the list. Indeed, the MGH protocol I obtained from Andre has one acquisition (NSA). Related, I cc this post: We have been trying adaptations of the T2spaceFLAIR MGH protocol on our Phillips 3T scanners (sequences called VISTA).

Re: [Freesurfer] Motion correction for SPACE FLAIR

2014-01-02 Thread Bruce Fischl
Hi Octaviaan no, not really. You should motion correct and average them using something like mri_motion_correct* We do typically bandwidth/readout match them to the memprages so that there is no differential distortion cheers Bruce On Wed, 1 Jan 2014, Octavian Lie wrote: > Dear All, > > We

[Freesurfer] Motion correction for SPACE FLAIR

2014-01-01 Thread Octavian Lie
Dear All, We recently implemented pial correction using T2 space FLAIR with freesurfer v 5.3, mostly successfully. We use 2-3 MPRAGE (sagittal + axial and/or coronal) volumes as 001.mgz, 002/003.mgz for the motion correction step in recon-all pipeline. The typical times for acquiring space FLAIR i