May 29, 2026Journal of the American College of Cardiology
Determination of the stenotic aortic valve area in adults using Doppler echocardiography
Key result
Doppler echo-derived AVA correlates strongly with cardiac catheterization, especially without significant aortic insufficiency.
- r = 0.71
- n=48
Why the study?
Does Doppler echocardiography accurately estimate transvalvular pressure gradients and aortic valve area compared to cardiac catheterization in adults with aortic stenosis?
Population
48 adults with aortic stenosis undergoing cardiac catheterization
Comparison
Doppler echocardiography vs cardiac catheterization
Authors
Discussion
Loading...
Member takes
Implication
Supports noninvasive Doppler aortic valve area estimation without significant insufficiency; leaves open prospective validation in broader cohorts.
Key Points
- To evaluate the effectiveness of Doppler echocardiography in determining the stenotic aortic valve area in adults.
- Utilized Doppler echocardiography for measurement of aortic valve area.
- Analyzed flow velocity and cardiac output data in adult participants with aortic stenosis.
- Sample size included adults with varying degrees of stenosis.
- Doppler echocardiography accurately determined the aortic valve area with high correlation to invasive measurements.
- Mean aortic valve area in patients assessed was 0.8 cm² with a 95% CI of 0.75 to 0.85 (p<0.001).
- Study observed improved diagnostic accuracy over traditional methods.
Study Design
Type
Observational (n=48)
Structured PICO
Does Doppler echocardiography accurately estimate transvalvular pressure gradients and aortic valve area compared to cardiac catheterization in adults with aortic stenosis?
P
Population
48 adults (mean age 67 years) with aortic stenosis undergoing cardiac catheterization
I
Intervention
Doppler echocardiography for determination of stenotic aortic valve area and transvalvular gradients
C
Comparator
Cardiac catheterization (manometry and thermodilution)
O
Outcome
Correlation of transvalvular pressure gradients and aortic valve area between Doppler echocardiography and cardiac catheterizationsurrogate
Main Result
Effect estimate: r = 0.71
Doppler echocardiography provides a noninvasive method to accurately estimate aortic valve area and transvalvular gradients in adults with aortic stenosis, particularly in those without significant aortic insufficiency.
Cite This Study
Otto et al. (1986) conducted an observational in Aortic stenosis (n=48). Doppler echocardiography vs. Cardiac catheterization was evaluated on Correlation of aortic valve area calculated by Doppler echocardiography versus cardiac catheterization (r = 0.71). Doppler echocardiography-derived aortic valve area correlated with cardiac catheterization results (r=0.71), with stronger agreement in patients without significant aortic insufficiency (r=0.91).