r20200830: Figuring out bad results for MTsat

[jcohenadad]

MTsat data are poorly reproducible:

From: r20200830:

The purpose of this issue is to discuss potential causes.

sherbrooke

• MTsat=0.000110555005470231.
• Data look OK
• acq params: -trmt 00645023 -trpd 00645023 -trt1 0015 -famt 9 -fapd 9 -fat1 15 --> ⚠️ should be 64ms (not 645023...).
• Getting a R1 values were found to be lower than 0.01. They will be set to inf, producing T1=0 for these voxels. in the log file.

sub-geneva02

• MTsat=0.793558347804196
• Data look OK
• params: -trmt 0035 -trpd 0035 -trt1 0015 -famt 9 -fapd 9 -fat1 15 --> does match the protocol
• Getting a R1 values were found to be lower than 0.01. They will be set to inf, producing T1=0 for these voxels. in the log file.

fslAchieva

• Wrong placement (should be centered at C3-C4). See https://github.com/spine-generic/data-multi-subject/issues/36