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improve description of fMRI sequences #114

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pbellec opened this issue May 17, 2023 · 2 comments · May be fixed by #120
Open

improve description of fMRI sequences #114

pbellec opened this issue May 17, 2023 · 2 comments · May be fixed by #120
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@bpinsard
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enhancement New feature or request help wanted Extra attention is needed
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cneuromod-2022

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@pbellec
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pbellec commented May 17, 2023

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.
@pbellec pbellec added enhancement New feature or request help wanted Extra attention is needed labels May 17, 2023
@bpinsard
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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
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It was likely based on Ernst angle calculation:

image

@pbellec pbellec added this to the cneuromod-2022 milestone Jul 11, 2023
@bpinsard bpinsard linked a pull request Jul 27, 2023 that will close this issue
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enhancement New feature or request help wanted Extra attention is needed
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add description of FoV and flip-angle choice courtois-neuromod/cneuromod_docs
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