Pulsed arterial spin labeling

There are two ways to perform arterial spin labeling experiments The first one is the continuous spin labeling (CASL), where the blood is continuously inverted upstream. Therefore the magnetization within the tissue is in a steady state (Williams et al. 1992). The second class of ASL techniques is pulsed... 

Skeletal muscle perfusion in mouse leg was determined quantitatively, dynamically and noninvasively by NMR arterial spin-labeled(ASL) imaging. It was shown that despite the small size of the animal, mouse muscle perfusion may be measured, at rest and in conditions of reactive hyperemia, using saturation inversion recovery sequence, a pulsed ASL variant combined with NMR imaging. 

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