Dynamic B0field shimming for improving pseudo-continuous arterial spin labeling at 7 Tesla
Yang Ji,
Joseph G. Woods,
Hongwei Li
et al.
Abstract:PurposeB0inhomogeneity within the brain-feeding arteries is a major issue for pseudo-continuous arterial spin labeling (PCASL) at 7T because it reduces labeling efficiency and leads to a loss of perfusion signal. This study aimed to develop a vessel-specific dynamic B0field shimming method for 7T PCASL to enhance labeling efficiency by correcting off-resonance in the arteries within the labeling region.MethodsWe implemented a PCASL sequence with dynamic B₀ shimming at 7T that compensates for B0field offsets at… Show more
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