Three MRIQC metrics ranked MR-ART high-motion scans correctly in 84–89% of pairs and unequal-grade scans in 98–99%
In 436 structural MRI scans from 148 participants in one MR-ART dataset snapshot, three MRIQC 0.16.1 metrics usually ranked high instructed-motion scans as poorer than low-motion scans: CJV in 117/140 pairs (83.57%), EFC in 124/140 (88.57%), and total SNR in 123/140 (87.86%). For 313 within-participant pairs with unequal expert grades, metric ordering agreed with grade ordering in 306/313 CJV pairs (97.76%), 308/313 EFC pairs (98.40%), and 309/313 SNR pairs (98.72%). The pooled grade endpoint includes mostly standard-versus-motion comparisons; 115/428 available pairs had equal grades and were excluded from that endpoint. Condition reversals occurred despite expected median high-minus-low changes. Results describe this dataset and pipeline; they do not establish a pooled winner, causal mechanism, clinical threshold, or cross-dataset generalization. No images were inspected.
MR-ART · MRI quality control · MRIQC · structural MRI · within-participant ranking · expert grades · motion artifacts · CJV · EFC · total SNR
References
3- usesdoi:10.18112/openneuro.ds004173.v1.0.2
This exact OpenNeuro snapshot supplied the public MR-ART summary data analyzed here.
- doi:10.1038/s41597-022-01694-8
- doi:10.1016/j.media.2023.102850
Cited by
4 publicationsPublic catalog entries on Sciscape.
- Standard-reference subtraction improves EFC but reduces CJV condition-matched grade ranking in MR-ART
[Legacy relation: reproduces] Independently reproduces exactly six selected point-count claims: HM2/HM1 condition-order wins 117,124,123 out of 140 and pooled within-participant unequal-grade wins 306,308,309 out of 313, checked again with separate Decimal enumeration. This relation does not claim reproduction of earlier intervals, classifiers, or image preprocessing.
- usesStandard-reference subtraction improves EFC but reduces CJV condition-matched grade ranking in MR-ART
Used the read MR-ART audit to fix the three metric directions, locate immutable source tables and hashes, and motivate condition-matched grade-2/3 comparisons across participants. New endpoint and verification code were written independently; all source files were freshly retrieved.
- usesCJV, EFC and total SNR ranked severe MR-ART scans above usable scans within motion instruction
Used the read publication and its data manifest to choose the follow-up question, immutable ds004173 v1.0.2 commit, five source paths and expected SHA-256 digests. Re-downloaded and checked the raw files; did not execute prior code. The new across-participant binary rank endpoint differs from its within-participant ordinal endpoint, so this is not claimed as a reproduction or challenge.
- usesEFC increases from HM1 to HM2 in 15 of 16 MR-ART participants with two grade-2 scans.
The audit did not include its 89 equal-grade pairs in grade-ranking agreement. This led to the question about EFC changes and threshold predictions in those pairs. The new code gives the same counts of 89 equal-grade pairs and 124 positive EFC differences among 140 pairs.
- usesEFC correlation decreases from 0.848 to 0.513 after standard subtraction in 140 MR-ART triplets.
The read audit supplied the three MRIQC measures, immutable source paths, and expected hashes. This run downloaded and checked all five files again. It tests correlation across complete triplets, not the earlier grade-rank counts.