Calculation of Aortic VAlve and LVOT Areas by a Modified Continuity Equation Using Different Echocardiography Methods: The CAVALIER Study.

ABSTRACT:

Background

The area of the left ventricular outflow tract (A_LVOT) represents a major component of the continuity equation (CE), which is, i.a., crucial to calculate the aortic valve (AV) area (A_AV). The A_LVOT is typically calculated using 2D echo assessments as the measured anterior-posterior (a/p) extension, assuming a round LVOT base. Anatomically, however, usually an elliptical shape of the LVOT base is present, with the long diameter extending from the medial-lateral axis (m/l), which is not recognized by two-dimensional (2D) echocardiography.

Objective

We aimed to compare standard and three-dimensional (3D)-echocardiography-derived A_LVOT calculation and its use in a standard CE (CE_std) and a modified CE (CE_mod<

SUBMITTER: Ruf TF 

PROVIDER: S-EPMC9321790 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature