Keywords: Pulse Sequence Design, Arterial spin labellingLiver perfusion is an important physiological parameter in health and disease (1,2). In the measurement of liver perfusion using arterial spin labelling (ASL), respiratory motion is a major challenge. In this study, respiratory motion information is acquired from a projection signal and used to adjust the position of the excited slice in real time. The feasibility of free-breathing multi-slice liver perfusion imaging using spin-echo EPI based pseudo-continuous ASL (pCASL) with navigator-based slice tracking method is investigated.
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