Aortic Root Index

– share this tool –

Data Acquisition

Aortic root

Reference Values

Normal Aortic Root Index (cm/m2)
Aortic RootMenWomen
Annulus1.3 ± 0.11.3 ± 0.1
Sinuses of Valsalva1.7 ± 0.21.8 ± 0.2
Sinotubular junction1.5  ± 0.21.5 ± 0.2
Proximal ascending aorta1.5 ± 0.21.6 ± 0.3

Formula

\[ARI = \frac{Ao \hspace{0.2cm} Root \hspace{0.2cm} diameter}{BSA}\]

Definitions

AoAorta
ARIAortic root index
BSABody surface area using the Mosteller formula

Reference

1.Lang RM et al. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. J Am Soc Echocardiogr. 2015 Jan;28(1):1-39. Full text

Disclaimer

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