Single-Artery Pseudo-Continuous Arterial Spin Labeling with Off-Resonance Correction
Cheng Ouyang 1 , Aiming Lu 1 , Xiangzhi Zhou 1 , and Mitsue Miyazaki 1
Toshiba Medical Research Institute USA,
Vernon Hills, IL, United States
The single-artery, or vessel-selective, pCASL sequence
has demonstrated to provide regional perfusion maps
non-invasively. However, similar to the original pCASL
labeling, vessel-selective pCASL is also sensitive to
off-resonance effects, which introduce phase errors in
the labeling RF train and thus compromise in tagging
efficiency. In this work, we propose to restore the
signal loss due to off-resonance effects by applying a
modified multiple phase correction method in the
vessel-selective labeling sequence.
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