Figure 4: 7 T (a) DCE-MRI maps of blood volume ( 𝑣 𝑏 ) and water permeability ( 𝑃 𝑤 𝑆 ) in a superior slice from a 71-year-old female with early AD [78]. (b) 𝑇 2 -weighted spin echo image and corresponding 𝑝 𝑏 map from a healthy 70-year-old female. Arrows indicate hyperintense white matter regions (15–23 mm2) visible on both the 𝑇 2 image and corresponding parametric map.