Yuichi J Shimada1, Maiko Shiota, Robert J Siegel, Takahiro Shiota. 1. Department of Medicine, Beth Israel Medical Center, University Hospital and Manhattan Campus for the Albert Einstein College of Medicine, New York, New York, USA.
Abstract
BACKGROUND: Determining right ventricular (RV) function is challenging because of the complex anatomy of the right ventricle. Three-dimensional echocardiography (3DE) has achieved better estimation, but underestimations of volumes and ejection fraction (EF) has often been reported, and no previous study has synthesized these data. The investigators performed a meta-analysis on the bias and examined the related factors. METHODS: Studies comparing RV volumes and/or EF between 3DE and magnetic resonance imaging were eligible. A meta-analysis was performed to evaluate the systematic bias. The related bias was investigated using univariate and multivariate regression analysis. RESULTS: Twenty-three studies including 807 subjects revealed underestimation of RV volumes (P < .00001) and EF (P = .03). Larger volumes and EF were associated with more underestimation. Older patient age was associated with overestimation of volumes and underestimation of EF. CONCLUSIONS: This meta-analysis found underestimation of RV volumes and EF by 3DE and factors affecting the bias. These data provide a more detailed basis for improving the accuracy of 3DE for further clinical application. 2010 American Society of Echocardiography. Published by Mosby, Inc. All rights reserved.
BACKGROUND: Determining right ventricular (RV) function is challenging because of the complex anatomy of the right ventricle. Three-dimensional echocardiography (3DE) has achieved better estimation, but underestimations of volumes and ejection fraction (EF) has often been reported, and no previous study has synthesized these data. The investigators performed a meta-analysis on the bias and examined the related factors. METHODS: Studies comparing RV volumes and/or EF between 3DE and magnetic resonance imaging were eligible. A meta-analysis was performed to evaluate the systematic bias. The related bias was investigated using univariate and multivariate regression analysis. RESULTS: Twenty-three studies including 807 subjects revealed underestimation of RV volumes (P < .00001) and EF (P = .03). Larger volumes and EF were associated with more underestimation. Older patient age was associated with overestimation of volumes and underestimation of EF. CONCLUSIONS: This meta-analysis found underestimation of RV volumes and EF by 3DE and factors affecting the bias. These data provide a more detailed basis for improving the accuracy of 3DE for further clinical application. 2010 American Society of Echocardiography. Published by Mosby, Inc. All rights reserved.
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