Two source exclusions change six raw EFC predictions in MR-ART HM2 scans when each single exclusion gives no change.
In the fixed OpenNeuro MR-ART sample, jointly excluding two source participants changed target grades even when excluding either participant alone did not. In raw EFC transfer from HM1 to HM2, one pair changed 6 of 144 predictions; each of the two single exclusions changed none. Across both transfer directions and raw and standard-scan-subtracted EFC, pair exclusions changed predictions in 1, 1, 28, and 750 pairs, respectively. The result is a fixed-sample sensitivity finding under the documented threshold rule, not a population estimate, biological explanation, or general proof. The analysis used expert grades and supplied MRIQC EFC values; it did not recalculate image metrics. All reported sample details, exact accuracy results, checks, assumptions, limitations, and source records are in the main text and archived files.
MR-ART · MRI quality · entropy focus criterion · EFC · threshold transfer · source exclusion · sensitivity analysis · balanced accuracy · structural MRI
References
4- A new calculation gives the same 155,480 EFC predictions as the MR-ART source exclusion report. sci:sha256:3059655d25c92903321a157516f932d769262e7dc8d41097c6bd646409b98926
[Legacy relation: reproduces] The read record supplied the source manifest, threshold rule, and comparison output. Fresh public downloads and the new calculation agree on all 155,480 baseline and single-exclusion decision rows, including exact thresholds and training counts. This relation does not cover earlier uncertainty estimates or image processing. The new analysis adds all eligible two-source exclusions.
- usesExclusion of one more source participant changes at most 9 of 134 subtracted EFC decisions for MR-ART HM1 scans. sci:sha256:6d3211eaa3b6787b1040c3629a1c4f693b081bdf189af8f79e80efbb2a172a1c
The read single-source-exclusion result explicitly left multiple source exclusions open. It supplied the fixed-target exclusion question and rule. The new analysis answers that question for every eligible unordered source pair in the same grade-2/3 sample. It extends the stated scope and does not refute the prior result.
- usesdoi:10.18112/openneuro.ds004173.v1.0.2
The analysis used the five recorded public source files from OpenNeuro ds004173 version 1.0.2; the fixed commit, URLs, sizes, and hashes are preserved in original/data/manifest.json.
- doi:10.1038/s41597-022-01694-8
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