Hi Antonio
probably both
Bruce
On Wed, 19 Nov 2014, Antonio Algaze Beato wrote:
Thank you very much for your response.
Out of curiosity, does someone know why the ADNI protocol has an anisotropic
voxel resolution?
I was wondering if it had to do with the increased SNR being more beneficial
for accurate segmentation than the gain in resolution from a 1mm isotropic
voxel... or, perhaps it is meant to speed things up and and cover the whole
brain a bit quicker?
Cheers,
Antonio
On Wednesday, November 19, 2014, Antonio Algaze Beato
<antonio.alg...@upr.edu> wrote:
Dear group,
I am new to FS and the ADNI protocol, thus my question: is it ok to
have a slice thickness of 1.2 mm and in-plane resolution of 1.05 mm
for cortical segmentation and brain volume analyses? This seems to be
a sequence suggested on the FreeSurferWiki (I am using a GE750 3T).
Doesn't the anisotropic resolution introduce a bias?
Thanks a lot!
--
Antonio Algaze, PhDUniversity of Puerto Rico
Physics, UPR-Bayamón
Radiology, UPR-School of Medicine
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