Prosthetic Aortic Valve - Evaluation of elevated peak AV velocity

– share this tool –

Data Acquisition

Prosthetic aortic valve evaluation

Reference Values

Prosthetic AV Stenosis
EOA (cm2)DVI
Possible stenosis0.8-1.20.25-0.30
Suggest significant stenosis<0.8<0.25


Algorithm for evaluation of elevated peak prosthetic aortic jet velocity incorporating DVI, jet contour, and AT.1

Aortic prosthetic diagnosis algorithm

*PW Doppler sample too close to the valve (particularly when jet velocity by CW Doppler is ≥4 m/s). **PW Doppler sample too far (apical) from the valve (particularly when jet velocity is 3-3.9 m/s). ∅ Stenosis further substantiated by EOA derivation compared with reference values if valve type and size are known. Fluoroscopy and TEE are helpful for further assessment, particularly in bileaflet valves. AVR, Aortic valve replacement.


\[DVI = \frac{VTI_{LVOT}}{VTI_{PrAV}}\]

\[EOA = \frac{\pi (LVOT/2)^2 \times VTI_{LVOT}}{VTI_{PrAV}} \]

\[Indexed\hspace{0.1cm}EOA = \frac{EOA}{BSA} \]


VPrAVVelocity across prosthetic aortic valve
ATPrAVAcceleration time to peak prosthetic aortic valve velocity
VTILVOTVelocity-time integral at LVOT
LVOTLeft ventricular outflow tract diameter
VTIPrAVVelocity-time integral across prosthetic aortic valve
EOAEffective Orifice Area
DVIDoppler Velocity Index
BSABody surface area using the Mosteller formula


1.Zoghbi WA, et al. Recommendations for evaluation of prosthetic valves with echocardiography and Doppler ultrasound. J Am Soc Echocardiogr 2009; 22(9):994-995. Full text


We are doing our best to prepare the content of this website. However, Cardiology Connections, Corp cannot warranty the expressions and suggestions of the contents, as well as its accuracy. In addition, to the extent permitted by the law, Cardiology Connections, Corp shall not be responsible for any losses and/or damages due to the usage of the information on our website. Furthermore, the links contained on our website may lead to external sites, which are provided for convenience only. Any information or statements that appeared in these sites are not sponsored, endorsed, or otherwise approved by Cardiology Connections, Corp. For these external sites, Cardiology Connections, Corp cannot be held liable for the availability of, or the content located on or through it. Plus, any losses or damages occurred from using these contents or the internet generally.

Developer & Illustrator: Sirikarn Napan, MD, FACC