In-room imaging and MR planning

The effect of b-values on DWI: perfusion at low b-vals

perfusion

Fast diffusing component; @ b-values < ~150 s/mm2 ‘Perfusion’

diffusion

Slow diffusing component; @ b-values > ~150 s/mm2 ‘Diffusion’

Always measure range of b- values to capture both

Le Bihan et al., Radiology, 1988