Hi Jörg
T1-weighted image contrast decreases with increasing TE so you want to minimize it. Can you really not change it at all? I've never heard of that. Whas is the default TE?
cheers Bruce
On Mon, 14 May 2012, Jörg Pfannmöller wrote:
Dear freesurfers,
currently the freesurfer single tfl protocol for the segmentation of the cortex surface was implemented at our scanner.
Siemens Verio 3T MRT NumarisVer syngo MR B17 Gradientensystem (Tim 102x8) VQ-Engine
Unfortunately the echo-time (te) could not be set to the recomended value of 3.31ms. The te is defined by the system and can not be changed. Is this critical for the segmentation quality?
Sincerely yours
A MRT-Physician
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer