Mr perfusion studies with t1‐weighted echo planar imaging

摘要: The T1 perfusion model has worked well in brain functional studies where flow changes are measured. Using selective and nonselective inversion pulses, a new method been developed to study steady-state blood flow. authors obtained flow-sensitive images using flow-insensitive inversion. Subtraction of from gave us flow-weighted with good gray-white contrast cortical gray matter as the thalamus basal ganglia. Fitting T1S allowed obtain preliminary results maps. Two specific problems can seriously affect accuracy values These partial volume effect CSF matter, difference between white T1. discuss detail character these present number approaches manage such problems.