MentalHealthDaily

qMRI Brain Aging Maps Myelin, Iron, and Water in 138 Adults

by GLOOM

MHD featured image for qMRI brain aging maps of myelin, iron, and water.

A 2026 quantitative MRI preprint reanalyzed 138 healthy adults and found that multivariate modeling detected coordinated age-related shifts across myelin-sensitive, iron-sensitive, and water-sensitive brain maps.1 The signal was broad, but split-half validation weakened the result enough to keep it in the measurement-method lane rather than the clinical-test lane. Research Highlights 138 adults were reanalyzed: The …

White Matter Hyperintensity Penumbra MRI Links Hidden Damage to Cognition

by GLOOM

MHD featured image for white matter hyperintensity penumbra MRI and cognition.

A 245-person BeLOVE MRI analysis found that tissue immediately surrounding white matter hyperintensities already carried measurable injury: magnetization transfer saturation was lower inside lesions than contralesional white matter, β = −0.48, p < 0.001, and the gradient extended into normal-appearing tissue around the lesion border. The cognitive signal was narrower but clinically interesting: higher perilesional …