Performance of Computed Tomographic Angiography-Based Aortic Valve Area for Assessment of Aortic Stenosis.

ABSTRACT: Background A total of 40% of patients with severe aortic stenosis (AS) have low-gradient AS, raising uncertainty about AS severity. Aortic valve calcification, measured by computed tomography (CT), is guideline-endorsed to aid in such cases. The performance of different CT-derived aortic valve areas (AVAs) is less well studied. Methods and Results Consecutive adult patients with presumed moderate and severe AS based on echocardiography (AVA measured by continuity equation on echocardiography <1.5 cm²) who underwent cardiac CT were identified retrospectively. AVAs, measured by direct planimetry on CT (AVA_CT) and by a hybrid approach (AVA measured in a hybrid manner with echocardiography and CT [AVA_Hybrid]), were measured. Sex-specific aortic valve calcificat

SUBMITTER: Ash J 

PROVIDER: S-EPMC10492957 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature