Olfactory MRI Radiomics Link pTau217 to Alzheimer’s Cognition
A 2026 multi-cohort Alzheimer’s disease study found that MRI radiomics from the hippocampus and amygdala linked plasma pTau217 and smell identification to cognitive impairment — with more added cognitive signal than simple regional volume. The result is useful because it points to a possible bridge between blood biomarkers and brain-circuit damage, but it is still …