While widely used for perfusion imaging, the flow-driven inversion labeling commonly used with pseudo-continuous ASL (PCASL) presents a significant off-resonance sensitivity as well as high power deposition potentially limiting high-field applications. We therefore investigated an alternate labeling scheme that takes advantage of the multiple aliased labeling planes that arise within the labeling RF envelope when reducing the peak-to-average gradient ratio. First numerical simulations and experiments show the potential for low-SAR, B0 and flow-velocity robust saturation labeling.
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