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Background The precise quantification of aortic regurgitation (AR) is central to surgical planning. Some authors suggest early intervention in asymptomatic patients with severe AR. With the advent of transcatheter aortic valve implantation (TAVI), the identification and precise quantification of paravalvular regurgitation is also paramount. In routine clinical practice, the imaging plane used for flow analysis by phase contrast (PC) technique is the sinotubular junction (STJ) in the ascending aorta. However, this plane is not suitable in cases with TAVI. The other two used planes are the ascending aorta (AAo) and the left ventricle outflow tract (LVOT), but these are said to respectively, overestimate and underestimate the measurements. Objective: to compare the volumes of three different planes of measurement in the AAo, JST and LVOT, in patients with different degrees of AR.

journal of cardiovascular magnetic resonance

Aortic Regurgitation Quantification using Cardiac Magnetic Resonance. Is there a best imaging plane for flow quantification? A single center clinical trial