Numerical modeling in echocardiography: Difference between revisions

Revision as of 06:27, 1 March 2015

Latest revision as of 21:53, 11 July 2024

(18 intermediate revisions by 12 users not shown)

Line 1:

{{multiple issues|

{{COI|date=February 2015}}

{{lead missing|date=February 2015}}

{{notability|date=February 2015}}

}}

<!--- Don't mess with this line! --->

<!--- Write your article below this line --->

'''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>{{cite journal |pmid=3366997 | volume=11 | issue=6 | title=Prediction of the severity of aortic stenosis by Doppler aortic valve area determination: prospective Doppler-catheterization correlation in 100 patients | year=1988 | journal=J. Am. Coll. Cardiol. | pages=1227–34 | doi=10.1016/0735-1097(88)90286-0| last1=Oh | first1=Jae K. | last2=Taliercio | first2=Charles P. | last3=Holmes | first3=David R. | last4=Reeder | first4=Guy S. | last5=Bailey | first5=Kent R. | last6=Seward | first6=James B. | last7=Tajik | first7=A.Jamil | doi-access=free }}</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.

[[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>{{cite web |title=Aortic stenosis |url=http://www.wikiecho.org/wiki/Aortic_stenosis |website=WikiEcho |archive-url=https://web.archive.org/web/20180312182250/http://www.wikiecho.org/wiki/Aortic_stenosis |archive-date=March 12, 2018 |url-status=dead}}</ref>

A broad discipline of mathematical modeling of intracardiac velocity parameters such as [[ePLAR]] 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 intracardiac 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. Circulation 1997;95:151-5</ref><ref>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 P, Nishimura RA. Measurement of pulmonary pressures and pulmonary resistance: is Doppler ready for prime time? Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography. 2013 Oct;26(10):1178-9. PubMed PMID 24054048.</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>

A broad discipline of mathematical modeling of intracardiac velocity parameters such as [[ePLAR]] 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 intracardiacintra-cardiac filling pressures.<ref>{{cite journal | last1 = Scalia | first1 = Gregory M. | last2 = Greenberg | first2 = Neil L. | last3 = McCarthy | first3 = Patrick M. | last4 = Thomas | first4 = James D. | last5 = Vandervoort | first5 = Pieter M. | year = 1997 | title = Non-Invasive Assessment of the Ventricular Relaxation Time Constant (τ?) in Humans by Doppler Echocardiography. Gregory| M.journal Scalia,= NeilCirculation L.| Greenberg,volume Patrick= M.95 McCarthy,| Jamesissue D.= Thomas,1| Pieterpages M.= Vandervoort.151–5 Circulation| 1997;doi=10.1161/01.cir.95:.1.151-5| pmid = 8994430 }}</ref><ref>{{cite journal | last1 = Scalia | first1 = G.M. | last2 = Burstow | first2 = D.J. | year = 1999 | title = Color M-mode and Doppler-derived tau (τ?) as practical advances in clinical diastology - the TauCoMM project. G.M.| Scalia and D.J. Burstow.journal = Heart, Lung and Circulation 1999| Vol.volume = 9, Issue| issue = 3,| Pagepage = A13. }}</ref><ref>Sorajja{{cite P,journal Nishimura| RApmid = 24054048 | doi=10.1016/j.echo.2013.08.001 | volume=26 | issue=10 | 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| publicationpages=1178–9| oflast1=Sorajja the| Americanfirst1=Paul Society| oflast2=Nishimura Echocardiography.| 2013first2=Rick Oct;26(10):1178-9A. PubMed PMID 24054048.}}</ref> Shunt defects have been studied using the [[Relative Atrial Index]].<ref>{{cite journal | last1 = Kelly | first1 = Natalie F | last2 = Walters | first2 = Darren | last3 = Hourigan | first3 = Lisa | last4 = Burstow | first4 = Darryl J | last5 = Scalia | first5 = Gregory M | year = 2010 | title = The Relative Atrial Index (RAI) – A Novel, Simple, Reliable and Robust Transthoracic Echocardiographic Indicatory of Atrial Defects". Natalie| Fjournal Kelly,= DarrenJ Walters,Am LisaSoc Hourigan,Echocardiogr Darryl| Jvolume Burstow,= Gregory23 M| Scalia.issue J= Am3| Socpages Echocardiogr= 2010;23:275-81275–81 | doi=10.1016/j.echo.2009.11.014| pmid = 20097528 }}</ref>

==References==

{{reflist}}

==See also==

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

Line 18 ⟶ 15:

* [[Christian Doppler]]

==References==

{{reflist}}

== External links ==

* [http://www.echotext.info/ Echocardiography Textbook by Bonita Anderson]

* [http://www.americanheart.org/presenter.jhtml?identifier=3005161 Echocardiography (Ultrasound of the heart)]

* [https://web.archive.org/web/20060814010939/http://www.echoincontext.com/doppler01/doppler01_01.asp Doppler Examination - Introduction]

* [https://web.archive.org/web/20080511193224/http://www.echoincontext.com/doppler01/doppler01_02.asp The Doppler Principle and the Study of Cardiac Flows]

[[Category:Cardiac proceduresimaging]]

[[Category:Medical ultrasonography]]

[[Category:Medical equipment]]

[[Category:Cardiac procedures]]

[[Category:Multidimensional signal processing]]

[[Category:Cardiology]]