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enh: add comment regarding 'effective' vs. 'requested' gradients
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oesteban committed Apr 23, 2021
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Expand Up @@ -525,6 +525,11 @@ The user is free to choose any other label than `singleband` and

The gradient strength and orientation information corresponding to a DWI acquisition
is REQUIRED, and therefore, MUST be stored in the structure.
The gradient strength and orientation information stored in the structure MUST correspond
to "*effective*" values (as in, the actual orientations and strengths applied by the scanner),
rather than the "*requested*" values (as in, the original gradient table design that is
configured into the scanner's MR protocol settings).

The RECOMMENDED way to store gradient information is a `[*_]dwi.tsv` file corresponding
to one or more DWI files.
The format of this TSV file, and associated metadata, are described below.
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