Evaluates how postmortem intervals influence quantitative MRI metrics in swine brains, suggesting practical applications for ex vivo imaging.
PMI exerts the most robust effects on T1. Fixation has a significant impact on qMRI values, mitigating the apparent PMI effect and increasing the inter-sample variability. However, it is still possible to retrieve the PMI effects from fixed brain at the level of rank order, providing practical guidance for further ex vivo qMRI studies on PMI.
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Wang et al. (2026) studied this question.
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