Nonconvective Forces : A Critical and Often Ignored Component in the Echocardiographic Assessment of Transvalvular Pressure Gradients
Joint Authors
Tripathi, Ravi S.
Firstenberg, Michael S.
Papadimos, Thomas J.
Abel, Erik E.
Source
Cardiology Research and Practice
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-07
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
Echocardiography is routinely used to assess ventricular and valvular function, particularly in patients with known or suspected cardiac disease and who have evidence of hemodynamic compromise.
A cornerstone to the use of echocardiographic imaging is not only the qualitative assessment, but also the quantitative Doppler-derived velocity characteristics of intracardiac blood flow.
While simplified equations, such as the modified Bernoulli equation, are used to estimate intracardiac pressure gradients based upon Doppler velocity data, these modified equations are based upon assumptions of the varying contributions of the different forces that contribute to blood flow.
Unfortunately, the assumptions can result in significant miscalculations in determining a gradient if not completely understood or they are misapplied.
We briefly summarize the principles of fluid dynamics that are used clinically with some of the inherent limitations of routine broad application of the simplified Bernoulli equation.
American Psychological Association (APA)
Firstenberg, Michael S.& Abel, Erik E.& Papadimos, Thomas J.& Tripathi, Ravi S.. 2011. Nonconvective Forces : A Critical and Often Ignored Component in the Echocardiographic Assessment of Transvalvular Pressure Gradients. Cardiology Research and Practice،Vol. 2012, no. 2012, pp.1-4.
https://search.emarefa.net/detail/BIM-467754
Modern Language Association (MLA)
Firstenberg, Michael S.…[et al.]. Nonconvective Forces : A Critical and Often Ignored Component in the Echocardiographic Assessment of Transvalvular Pressure Gradients. Cardiology Research and Practice No. 2012 (2012), pp.1-4.
https://search.emarefa.net/detail/BIM-467754
American Medical Association (AMA)
Firstenberg, Michael S.& Abel, Erik E.& Papadimos, Thomas J.& Tripathi, Ravi S.. Nonconvective Forces : A Critical and Often Ignored Component in the Echocardiographic Assessment of Transvalvular Pressure Gradients. Cardiology Research and Practice. 2011. Vol. 2012, no. 2012, pp.1-4.
https://search.emarefa.net/detail/BIM-467754
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-467754