improve description of fMRI sequences

courtois-neuromod / cneuromod_docs

Documentation of the Courtois NeuroMod project

http://docs.cneuromod.ca/

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improve description of fMRI sequences #114

Open pbellec opened 1 year ago

pbellec commented 1 year ago

Feedback from a reviewer:

I could not find mention about FOV. And just out of interest, I am curious as to why the flip angle is as small as 52 degrees for MB factor =4 and TR > 1s.

bpinsard commented 1 year ago

What do they mean by FOV? Information about the box can be easily derived from slices, voxel and matrix sizes. Do they want to know to say it's AC-PC -16 and that we set that box with that angle for full brain coverage AMAP ? If I remember correctly the flip-angle was set either from the HCP-prisma protocol, or adjusted by Julien based on the Ernst angle calculation.

jcohenadad commented 1 year ago

It was likely based on Ernst angle calculation: