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Abstract #3898

Beat-specific estimate of PVC-compromised cardiac function via non-gated free-breathing MRI

Dariya I. Malyarenko 1 , Thomas L. Chenevert 1 , Gisela C. Mueller 1 , Justin Saunders 2 , Frank M. Bogun 2 , and Scott D. Swanson 1

1 Radiology, University of Michigan, Ann Arbor, MI, United States, 2 Internal Medicine: Cardiology, University of Michigan, Ann Arbor, MI, United States

Improved imaging techniques are needed for early assessment of left ventricular dysfunction in patients with frequent premature ventricular contractions (PVCs). Accurate beat-specific assessment of cardiac function is required for appropriate disease prognosis and therapy choice. Conventional cardiac MRI acquisition is compromised by arrhythmia-rejection data filtering and breath-hold induced variations in cardiac function. This preliminary study evaluates free-breathing non-gated real time MRI acquisition retrospectively synchronized with physiological data for cardiac function analysis during PVCs.

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