Single-venc 4D flow MRI is inherently limited by the need to set a velocity encoding sensitivity (venc), where velocity(v)>venc results in velocity aliasing and v<<venc results in elevated noise. Thus, we propose a novel multi-venc encoding scheme for reconstruction of a triple-venc 4D flow dataset from our previously described 7TR dual-venc sequence. This triple-venc dataset can be used to improve velocity unwrapping without increasing scan time. The aim of this study was to systematically evaluate the utility of 7TR triple-venc velocity encoding to improve velocity dynamic range and further decrease velocity noise beyond the capabilities of current dual-venc methods.
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