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 AJALA^1,2, Jiming Zhang², Erick Buko^1,2, 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/E_m 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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