Using Propensity Score Matching to Control for MRI Scan Quality.

ABSTRACT: Movement during MRI scanning complicates distinguishing between the different tissues in the brain (e.g., grey and white matter). Standard practice excludes scans based on researcher-determined visual quality thresholds. Unfortunately, children, elderly, and clinical populations are shown to move more, resulting in higher exclusion rates. This disproportionate exclusion creates systematic bias in the literature and makes research findings less generalizable. Furthermore, the artifacts caused by motion are demonstrated to continue to confound data, even after visual quality control has occurred. We aimed to minimize the confounding factor of systematic group differences in movement. To achieve this, we used a post-scanning statistical technique called propensity score matching (PSM) that ma

SUBMITTER: Cramm VJ 

PROVIDER: S-EPMC12485671 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature