Two dimensional Doppler echocardiographic/M mode echocardiographic and phonocardiographic method for study of extracardiac heterograft valved conduits in the right ventricular outflow tract position

Jesus M. Canale, David J. Sahn, Jack G. Copeland, Stanley J. Goldberg, Lilliam M. Valdes-Cruz, Neal Salomon, Hugh D. Allen

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Significant concern exists over the long-term results of right ventricular outflow tract repair using heterograft valved conduits. Because these conduits and valves are difficult to image using ultrasound, a serially applicable two dimensional Doppler echocardiographic, M mode echocardiographic and phonocardiographic method for noninvasive investigation was developed and applied in 15 children. The method provides two dimensional echocardiographic imaging of valve contour and motion, as well as M mode and phonocardiographic analysis and quantitative range-gated Doppler information about the timing of flow through the conduit. Conduit diameter in two dimensional echocardiographic images correlated well with known conduit size (r = +0.96). A thickened and stenosed heterograft valve was predicted in two patients before hemodynamic investigation. This new method provides serially obtainable information to aid in the management of children and infants with a valved conduit placed for repair of congenital heart malformations and aids in planning the timing of hemodynamic follow-up studies.

Original languageEnglish (US)
Pages (from-to)100-107
Number of pages8
JournalThe American journal of cardiology
Volume49
Issue number1
DOIs
StatePublished - Jan 1982

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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