We demonstrated the feasibility of breath hold-free dynamic MRI of the liver using stack-of-stars acquisition with super high temporal frame rate (0.5s/phase) reconstruction. Stack-of-stars acquisition with soft gating technique enabled to acquire sufficient quality of dynamic MRI without breath-holdings. The super high frame rate reconstruction provided the better time-intensity curves, which enabled to capture accurate time-to-peak enhancement of each vessel, a second bolus pass in the aorta, and the peak delay from splenic vein to main portal vein. This technique is feasible for the comprehensive understandings of hemodynamics in arterial and portal venous circulation and abdominal organs.
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