Abstract #4064

Minimizing Acquisition Time for Quantification of Regional Cerebral Blood Flow (RCBF) and Arterial Transit Time (ATT) Using Pseudo-Continuous ASL at 3.0T

Yasuhiro Fujiwara¹, Hirohiko Kimura², Tsuyoshi Matsuda³, Tomokazu Ishida¹, Kyouji Higashimura¹

¹Radiological Center, University of Fukui Hospital, Fukui, Japan; ²Radiology, University of Fukui, Fukui, Japan; ³GE Healthcare Japan, Tokyo, Japan

The purpose of this study was to evaluate the effect of the number of post labeling delay times and averages to reproduce and minimize acquisition time for precise rCBF quantification. As result of this study, When performing pCASL at post label delay of 0.5, 1.0, 1.5s, reproducible perfusion images were obtained with sufficient SNR in the condition of 12 averages. Using 3 time points protocol, scanning time can be minimized as short as 5 minutes.