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Abstract #0095

Simultaneous Measurement of Myocardial and Blood Flow Velocities using a Dual Echo Dual Velocity Encoding (DEDV) Phase-Contrast MRI (PC-MRI) Approach for Evaluating Left Ventricular (LV) Diastolic Function

Afis AJALA1,2, Jiming Zhang2, Erick Buko1,2, Luning Wang3, Debra Dees2, Janie Swaab2, Benjamin Cheong2, Pei-Herng Hor4, and Raja Muthupillai2

1Department of Physics, University of Houston [Main Campus], Houston, TX, United States, 2Department of Diagnostic and Interventional Radiology, Baylor St. Luke's Medical Center, Houston, TX, United States, 3Philips Healthcare, Gainesville, FL, United States, 4Physics and Texas Center for Superconductivity, University of Houston [Main Campus], Houston, TX, United States

PC-MRI based Left ventricular (LV) diastolic indices such as E/Em ratio are conventionally estimated from two separate PC acquisitions: One sensitive to myocardium and the other to blood velocities. This ensures optimal velocity to noise ratio and zero velocity aliasing. A rapid single acquisition (dual echo dual VENC PC-MRI method) sensitive to both low and high velocities was developed. Preliminary result on 7 healthy subjects demonstrated a high agreement of LV diastolic indices obtained from the proposed and conventional method.

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