Left atrium 4D-flow segmentation with high-resolution contrast-enhanced magnetic resonance angiography
Hansuk Kim,
Stephen B. Wilton,
Julio Garcia
Abstract:BackgroundAtrial fibrillation (AF) leads to intracardiac thrombus and an associated risk of stroke. Phase-contrast cardiovascular magnetic resonance (CMR) with flow-encoding in all three spatial directions (4D-flow) provides a time-resolved 3D volume image with 3D blood velocity, which brings individual hemodynamic information affecting thrombus formation. As the resolution and contrast of 4D-flow are limited, we proposed a semi-automated 4D-flow segmentation method for the left atrium (LA) using a standard-of… Show more
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