Assessment of Transvalvular Flow Jet Eccentricity in Aortic Stenosis

Julio Garcia¹, Lyes Kadem², Eric Larose¹, Philippe Pibarot¹

Aortic valve eccentricity measurement may be related to valve hemodynamic in patients with aortic stenosis (AS). However, it is difficult to characterize with transthoracic Doppler echocardiography velocity measurements. Flow velocity eccentricity can be estimated from CMR phase-contrast flow velocity measurements using jet displacement and flow velocity angle. The aim of this study is to characterize aortic valve eccentricity on aortic stenosis patients. Aortic flow velocity eccentricity parameters showed to be able to characterize transvalvular flow hemodynamic on AS patients and may provide further information about patient outcome.