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Updated: Jul 4, 2026

A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
Published on: September 16, 2017
Minimizing acquisition time of arterial spin labeling at 3T
María A Fernández-Seara1, Brian L Edlow, Angela Hoang
1Neuroimaging Laboratory, Center for Applied Medical Research, University of Navarra, Pamplona, Spain. mfseara@unav.es
Abstract:
An improved arterial spin labeling (ASL) perfusion technique that combines pseudo-continuous labeling and a T2*-insensitive sequence (GRASE) with background suppression was used to acquire perfusion maps in normal volunteers and stroke patients. It is shown that perfusion measurements obtained in less than 1 min of scan time are reproducible, with a coefficient of variation of 7%. The perfusion maps generated from these data can be used to characterize the stroke lesion.

