Refine PIESNO

[arokem]

What would you like to see added in this software?

PIESNO calculation depends on the number of coils that were used for measurement and the recon algorithm. See dipy docstring. Realizing that many datasets would not have this information, I wonder whether there is any way to use it when available.

Do you have any interest in helping implement the feature?

Yes

Additional information / screenshots

No response

[oesteban]

It boils down to whether there is enough metadata stored in the sidecar json. This node:

mriqc/mriqc/workflows/diffusion/base.py

Line 130 in c8e7491

meta = pe.Node(ReadDWIMetadata(index_db=config.execution.bids_database_dir), name='metadata')

extracts the metadata, and has a dictionary at the output that can be checked (I would imagine for number of coils and type of acceleration?)

The problem is that different converters may name the metadata differently.

Once the heuristic is implemented, we just need to plug it in into the PIESNO node, which already has an n_channels input for it.