Numerical modeling in echocardiography: Difference between revisions

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Numerical manipulation of Doppler parameters obtain during routine [[Echocardiography]] has been extensively utilized to non-invasively estimate intra-cardiac pressures, in many cases removing the need for invasive cardiac catheterization.<ref>http://www.ncbi.nlm.nih.gov/pubmed/{{cite journal |pmid=3366997}}</ref>

Echocardiography uses ultrasound to create real-time anatomic images of the [[heart]] and its structures. [[Doppler echocardiography]] utilizes the Doppler principle to estimate intracardiac velocities. Via the modified [[Bernoulli's principle|Bernoulli equation]], velocity is routinely converted to pressure gradient for use in clinical cardiology decision making.<ref>http://www.wikiecho.org/wiki/Aortic_stenosis</ref>

A broad discipline of mathematical modeling of intracardiac velocity parameters for pulmonary circulation and aortic Doppler for [[aortic stenosis]] have been investigated. [[Diastolic heart failure|Diasatolic dysfunction]] algorithms use complex combinations of these numeric models to estimate intra-cardiac filling pressures.<ref>Non-Invasive Assessment of the Ventricular Relaxation Time Constant (τ) in Humans by Doppler Echocardiography. Gregory M. Scalia, Neil L. Greenberg, Patrick M. McCarthy, James D. Thomas, Pieter M. Vandervoort. "Non-Invasive Assessment of the Ventricular Relaxation Time Constant (?) in Humans by Doppler Echocardiography ''Circulation'' 1997;95:151-5</ref><ref>G.M. Scalia and D.J. Burstow. "Color M-mode and Doppler-derived tau (τ?) as practical advances in clinical diastology - the TauCoMM project. G.M. Scalia and D.J. Burstow. ''Heart, Lung and Circulation'' 1999; Vol. 9, Issue 3, Page A13.</ref><ref>Sorajja{{cite P,journal Nishimura| RApmid = 24054048 | doi=10.1016/j.echo.2013.08.001 | volume=26 | title=Measurement of pulmonary pressures and pulmonary resistance: is Doppler ready for prime time? Journal| ofdate=Oct the2013 American| Societyjournal=J ofAm EchocardiographySoc :Echocardiogr official| publication of the American Society of Echocardiography. 2013 Oct;26(10):1178-9. PubMed PMID 24054048.pages=1178–9}}</ref> Shunt defects have been studied using the [[Relative Atrial Index]].<ref>The Relative Atrial Index (RAI) – A Novel, Simple, Reliable and Robust Transthoracic Echocardiographic Indicatory of Atrial Defects". Natalie F Kelly, Darren Walters, Lisa Hourigan, Darryl J Burstow, Gregory M Scalia. J Am Soc Echocardiogr 2010;23:275-81.</ref>

==References==

{{reflist}}

==See also==

* [[Medical ultrasonography]] section: [[Medical ultrasonography#Doppler sonography|Doppler sonography]]

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* [[Christian Doppler]]

==References==

{{reflist}}

== External links ==