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The Tango formula as a simplified Doppler-only alternative for aortic valve area estimation: a single-centre pilot and proof-of-concept study with intra- and inter-observer reproducibility analysis

2026-05-04

Abstract excerpt

<title>Abstract</title> <p>Background. Accurate aortic valve area (AVA) estimation is central to aortic stenosis (AS) severity grading. The continuity equation (CE) is the reference echocardiographic method but is vulnerable to squared-error propagation from left ventricular outflow tract (LVOT) diameter measurement. The Tango formula (TF) estimates AVA from three continuous-wave Doppler parameters obtained from...

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Literature Corpus work
b741501e-950b-52b4-9dc1-ff1f93089c4e
DOI
10.21203/rs.3.rs-9407098/v1
Open publication

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The Tango formula as a simplified Doppler-only alternative for aortic valve area estimation: a single-centre pilot and proof-of-concept study with intra- and inter-observer reproducibility analysisDOI 10.21203/rs.3.rs-9407098/v1
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