Spin-labeling imaging of cerebral perfusion at 1.5 and 3.0 Tesla

Purpose: Two sequences have been compared for estimation of cerebral blood perfusion in areas of strong magnetic susceptibility changes at 1.5 and 3.0 Tesla: flow sensitive alternating inversion recovery (FAIR) true fast imaging in steady precession (TrueFISP) and FAIR echo-planar imaging (EPI). Methods: An arterial spin labeling (ASL) method was implemented, which is capable of perfusion imaging in areas of high magnetic susceptibility changes by combination of the FAIR spin preparation with a TrueFISP data acquisition strategy. Quantitative perfusion images were recorded at 1.5 Tesla and 3.0 Tesla on twelve he…