Image artifacts: DWI - Githubissues

courtois-neuromod / anat-processing

Pipeline to process anatomical data, including microstructure metrics from DWI and MT data

MIT License

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Image artifacts: DWI #27

Open jcohenadad opened 2 years ago

jcohenadad commented 2 years ago

This issue thread reports DWI image artifacts observed after QCing https://github.com/courtois-neuromod/anat-processing/releases/tag/r20220623.

These are likely related to wrong FOV placement and/or adjust shim volume.

jcohenadad commented 2 years ago

Screen Shot 2022-06-23 at 10 09 14 AM

jcohenadad commented 2 years ago

Screen Shot 2022-06-23 at 10 10 18 AM

mathieuboudreau commented 2 years ago

Ah, seems you had already documented these bad FOVs @jcohenadad re: the two outliers in the DWI images - these will be removed in the stats of the book.

The other outlier that needs to be removed is sub-02/ses-001, re: Arnaud's discovery that only 8 directions were acquired; much lower than all other measurements.