A new automated method for the quantification of mitral regurgitant volume and dynamic regurgitant orifice area based on a normalized centerline velocity distribution using color M-mode and continuous wave Doppler imaging

Dimitri Deserranno, Neil L. Greenberg, James D. Thomas, Mario J. Garcia

Research output: Contribution to journalArticle

4 Scopus citations


Previous echocardiographic techniques for quantifying valvular regurgitation (PISA) are limited by factors including uncertainties in orifice location and hemispheric convergence assumption. Using computational fluid dynamics simulations, we developed a new model for the estimation of orifice diameter and regurgitant volume without the aforementioned assumptions of the PISA technique. Using experimental data obtained from the in vitro flow model we successfully validated our new model. The model output (y) and reference (x) values were in close agreement (y =0.95x+0.38, r=0.96, error= 1.68±7.54% for the orifice diameter and y=1.18x-4.72, r=0.93, error = 6.48±16.81% for the regurgitant volume).

Original languageEnglish (US)
Pages (from-to)62-69
Number of pages8
JournalJournal of Biomechanical Engineering
Issue number1
Publication statusPublished - Feb 1 2003
Externally publishedYes


ASJC Scopus subject areas

  • Biomedical Engineering
  • Physiology (medical)

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