Error in volume_type in *_aslcontext.tsv file

Software Support
1

Summary of what happened:

Hi,

I am trying to run ASLprep, one error I got is the following.

this page (Magnetic Resonance Imaging - Brain Imaging Data Structure 1.10.0) indicates that volume_type can have values of noRF, but according to the error, that is not an accepted parameter. I changed noRF to cbf just so I could test the pipeline but I believe this parameter should accept noRF or n/a. As indicated on the BIDS website: Magnetic Resonance Imaging - Brain Imaging Data Structure 1.10.0

Command used (and if a helper script was used, a link to the helper script or the command generated):

PASTE CODE HERE

Version:

Environment (Docker, Singularity / Apptainer, custom installation):

Data formatted according to a validatable standard? Please provide the output of the validator:

bids-validator@1.14.5
	1: [ERR] In the 'sub-<label>[_ses-<label>][_acq-<label>][_rec-<label>][_run-<index>]_aslcontext.tsv', the 'volume_type' can only be filled with volumes ['cbf' ,'m0scan', 'label', 'control', 'deltam']. (code: 176 - ASLCONTEXT_TSV_INCONSISTENT)
		./sub-HCA6002236/perf/sub-HCA6002236_dir-PA_asl.nii.gz
		./sub-HCA6010538/perf/sub-HCA6010538_dir-PA_asl.nii.gz
		./sub-HCA6018857/perf/sub-HCA6018857_dir-PA_asl.nii.gz```

### Relevant log outputs (up to 20 lines):

PASTE LOG OUTPUT HERE


### Screenshots / relevant information:
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2

Hi @cindylucerog,

As you can see in the BIDS specification changelog (Releases · bids-standard/bids-specification · GitHub), that volume type was only added in September. I doubt ASLPrep is using a validator that is up to date with this recent change. You can try to skip bids validation.

Best,
Steven

3

oh ok, thank you Steven :slight_smile: