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Record Details

Record 29 of 139
[Measurement of left atrial and ventricular volumes in real-time 3D echocardiography. Validation by nuclear magnetic resonance]
Foreign Title: Mesure des volumes de l'oreillette et du ventricule gauche par echographie 3D en temps reel. Validation par resonance magnetique nucleaire
Author and Affiliation:
Bauer, F.(The Cleveland Clinic Foundation, Cardiology Department Imaging Section-Desk F-15, 44195 Cleveland-Ohio Etats-Unis)
Shiota, T.
Qin, J. X.
White, R. D.
Thomas, J. D.
Abstract: The measurement of the left ventricular ejection fraction is important for the evaluation of cardiomyopathy and depends on the measurement of left ventricular volumes. There are no existing conventional echocardiographic means of measuring the true left atrial and ventricular volumes without mathematical approximations. The aim of this study was to test anew real time 3-dimensional echocardiographic system of calculating left atrial and ventricular volumes in 40 patients after in vitro validation. The volumes of the left atrium and ventricle acquired from real time 3-D echocardiography in the apical view, were calculated in 7 sections parallel to the surface of the probe and compared with atrial (10 patients) and ventricular (30 patients) volumes calculated by nuclear magnetic resonance with the simpson method and with volumes of water in balloons placed in a cistern. Linear regression analysis showed an excellent correlation between the real volume of water in the balloons and volumes given in real time 3-dimensional echocardiography (y = 0.94x + 5.5, r = 0.99, p < 0.001, D = -10 +/- 4.5 ml). A good correlation was observed between real time 3-dimensional echocardiography and nuclear magnetic resonance for the measurement of left atrial and ventricular volumes (y = 0.95x - 10, r = 0.91, p < 0.001, D = -14.8 +/- 19.5 ml and y = 0.87x + 10, r = 0.98, P < 0.001, D = -8.3 +/- 18.7 ml, respectively. The authors conclude that real time three-dimensional echocardiography allows accurate measurement of left heart volumes underlying the clinical potential of this new 3-D method.
Publication Date: Jan 01, 2001
Document ID:
20040112540
(Acquired Oct 05, 2004)
Subject Category: LIFE SCIENCES (GENERAL)
Document Type: Journal Article
Publication Information: Archives des maladies du coeur et des vaisseaux (ISSN 0003-9683); Volume 94; 1; 31-8
Publisher Information: France
Description: In French
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CARDIAC VENTRICLES; ECHOCARDIOGRAPHY; HEART FUNCTION; NUCLEAR MAGNETIC RESONANCE; REAL TIME OPERATION; ADULTS; AGE FACTOR; FEMALES; HEART; MAGNETIC RESONANCE SPECTROSCOPY; MALES; REGRESSION ANALYSIS; SENSITIVITY ANALYSIS
Other Descriptors: ECHOCARDIOGRAPHY, THREE-DIMENSIONAL/METHODS; VENTRICULAR FUNCTION, LEFT; AGED; COMPARATIVE STUDY; ENGLISH ABSTRACT; FEMALE; HEART ATRIA/ANATOMY & HISTOLOGY/ULTRASONOGRAPHY; HEART VENTRICLES/ANATOMY & HISTOLOGY/ULTRASTRUCTURE; HUMAN; MAGNETIC RESONANCE SPECTROSCOPY; MALE; MIDDLE AGED; REGRESSION ANALYSIS; SENSITIVITY AND SPECIFICITY; SUPPORT, NON-U.S. GOV'T; NASA DISCIPLINE CARDIOPULMONARY; NON-NASA CENTER; VALIDATION STUDIES
Availability Source: Other Sources
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