Do not clean up FA for degenerate tensors within DTI node

[oesteban]

What happened?

We are immediately cleaning up the FA: https://github.com/nipreps/mriqc/blob/61b59e01777fccd381fee9ac4ffc28a7b65c2f5c/mriqc/interfaces/diffusion.py#L472-L473 and that precludes that we calculate the percentage of degenerate tensors as an IQM or plot them highlighted for visual QA/QC.

Methods that require a "massaged" FA (e.g., to calculate the CC mask) should take these two easy steps on their own.

/cc @arokem @teresamg

What command did you use?

-m dwi

What version of the software are you running?

master

How are you running this software?

Local installation ("bare-metal")

Is your data BIDS valid?

Yes

Are you reusing any previously computed results?

No

Please copy and paste any relevant log output.

No response

Additional information / screenshots

No response

[arokem]

What's the point of the FA file? Where is it used subsequent to saving?

[oesteban]

Generating the reports, mostly.

On Fri, Mar 22, 2024, 21:07 Ariel Rokem @.***> wrote:

What's the point of the FA file? Where is it used subsequent to saving?

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