Planimetry of Aortic Valve Area Using CTA: Cutoff Derivation for Stenotic Bicuspid and Tricuspid Valves

Circulation Cardiovascular Imaging 2026

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Authors: Silvia Voegele, Jan Minners, Nikolaus G Jander, Sebastian Grundmann, Philipp Ruile, Klaus Kaier, Christopher L. Schlett, Martin Soschynski, Christian Weber, Timo Heidt, Constantin von zur Mühlen, D Westermann
+1 more Manuel Hein
DOI: 10.1161/circimaging.125.018677
Cited by: 2
References: 25

Abstract

BACKGROUND: Computed tomography based planimetric assessment of the anatomic aortic valve area (aAVA CTA ) in aortic stenosis is routinely performed. Unlike transthoracic echocardiography (TTE)-based effective AVA by TTE, it lacks clearly defined severity cutoff values, limiting clinical utility. METHODS: In this retrospective single-center analysis with computed tomography angiography data from 2013 to 2025, cutoffs were determined from 1294 TTE-based conclusive severe or nonsevere patients by congruence of maximum velocity, mean pressure gradient, and effective AVA by TTE. In separate receiver operator curves analyses for tricuspid and bicuspid valves, the severe stenosis likely cutoff was defined by Youden index and the unlikely cutoff by a negative likelihood ratio

Fields of Study & Subjects

Cardiac Valve Diseases and Treatments Congenital Heart Disease Studies Aortic Disease and Treatment Approaches

Publication details

Journal / source
Circulation Cardiovascular Imaging
Publisher
Ovid Technologies (Wolters Kluwer Health)
Volume
19
Issue
3
Pages
e018677–e018677
Publication date
22 January 2026
Language
EN