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Evaluation of Descending Aortic Flow Volumes and Effective Orifice Area Through Aortic Coarctation by Spatiotemporal Integration of Color Doppler Data: An In Vitro Study

Wanitkun, Suthep and Gharib, Morteza and Zarandi, Mehrdad and Shiota, Takahiro and Sahn, David J. (1999) Evaluation of Descending Aortic Flow Volumes and Effective Orifice Area Through Aortic Coarctation by Spatiotemporal Integration of Color Doppler Data: An In Vitro Study. Journal of the American Society of Echocardiography, 12 (6). pp. 517-526. ISSN 0894-7317. https://resolver.caltech.edu/CaltechAUTHORS:20130912-090724828

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Abstract

Flow volumes in an in vitro model of the aorta with 3 different degrees of stiffness (stiff, moderately stiff, and compliant) proximal to a coarctation were calculated by using a digital color Doppler echocardiography flow calculation method that semi-automatically integrates spatial and temporal color flow velocity data. These flow volumes were compared with those obtained by the conventional pulsed Doppler method with reference to ultrasonic flowmeter. Flow volumes determined by the automated method agreed well with those obtained by ultrasonic flowmeter, even in this compliant aorta model with vessel size changing with pulsation, whereas the pulsed Doppler method overestimated the reference data, especially for more compliant descending aortic segments. The combination of flow data with continuous wave Doppler allows definition of effective orifice area for coarctation.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/S0894-7317(99)70089-1DOIArticle
http://www.sciencedirect.com/science/article/pii/S0894731799700891PublisherArticle
Additional Information:© 1999 by the American Society of Echocardiography. The authors would like to thank Judy Schultheis of OHSU for her hard work and helpful suggestions in the preparation of this manuscript.
Group:GALCIT
Issue or Number:6
Record Number:CaltechAUTHORS:20130912-090724828
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130912-090724828
Official Citation:Suthep Wanitkun, Morteza Gharib, Mehrdad Zarandi, Takahiro Shiota, David J. Sahn, Evaluation of Descending Aortic Flow Volumes and Effective Orifice Area Through Aortic Coarctation by Spatiotemporal Integration of Color Doppler Data: An In Vitro Study, Journal of the American Society of Echocardiography, Volume 12, Issue 6, June 1999, Pages 517-526, ISSN 0894-7317, http://dx.doi.org/10.1016/S0894-7317(99)70089-1. (http://www.sciencedirect.com/science/article/pii/S0894731799700891)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41275
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:13 Sep 2013 16:10
Last Modified:03 Oct 2019 05:47

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