Meeting Banner
Abstract #0863

Comparison of velocity-selective and pulsed ASL perfusion MRI in patients with suspected cerebral cortical ischemia

Divya S Bolar1,2, Bruce R Rosen1,2, and Pamela W. Schaefer1

1Radiology, Massachusetts General Hospital, Boston, MA, United States, 2MGH/HST Martinos Center for Biomedical Imaging, Charlestown, MA, United States

Traditional pulsed ASL (PASL) suffers from arterial transit delay (ATD) effects, often resulting in inaccurate perfusion measurements in cerebral ischemia. Velocity selective ASL (VSASL), on the other hand, accurately measures perfusion independent of ATD. In this study, we compare VSASL and PASL perfusion in 27 patients with suspected cerebral cortical ischemia. Normal perfusion on VSASL and PASL had nearly perfect negative predictive value for ischemia, abnormal PASL perfusion had a high false positive rate for ischemia (25-35%), and abnormal VSASL perfusion had a ~0% false positive rate for ischemia.

This abstract and the presentation materials are available to members only; a login is required.

Join Here