Comparison of blood-brain barrier water exchange rate in young and older adults with diffusion-weighted and multi-echo arterial spin labeling MRI
Water exchange rate (Kw) across the blood-brain barrier (BBB) has emerged as a candidate biomarker for assessing aging and neurological disease. This work sought to compare the diffusion-weighted (DW) and multi-echo (ME) arterial spin labeling (ASL) MRI sequences that assess Kw across the BBB in a young and an ol...