Quantitative three-dimensional reconstruction of left ventricular volume with complete borders detected by acoustic quantification underestimates volume

American Heart Journal
L JiangR A Levine

Abstract

Recently a new acoustic-quantification (AQ) technique has been developed to provide on-line automated border detection with an integrated backscatter analysis. Prior studies have largely correlated AQ areas with volumes without direct comparison of volumes for agreement. By using complete AQ-detected borders as the input to a validated method for three-dimensional echocardiographic (3DE) reconstruction, we can compare an entire cavity volume measured with the aid of AQ against a directly measured volume. This would also explore the possibility of applying AQ to 3DE reconstruction to reduce tracing time and enhance routine applicability. To compare reconstructed volumes with actual values in a stable standard allowing direct volume measurement, the left ventricles of 13 excised animal hearts were studied with a 3DE system that automatically combines two-dimensional (2D) images and their locations. Intersecting 2D views were obtained with conventional scanning and AQ imaging, with gains optimized to permit 3D reconstruction by detecting the most continuous AQ borders for each view, with maximal cavity size. Reconstruction was performed with manually traced central endocardial reflections and AQ-detected borders visually reproduce...Continue Reading

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Citations

Feb 15, 2001·Echocardiography·Azaria J.J.T. ReinStephen P. Sanders
Feb 15, 2001·Echocardiography·Victor Mor-AviRoberto M. Lang
Jul 14, 2007·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Tiffany J RiehleDerek A Fyfe
Oct 11, 2003·Echocardiography·Miguel Angel Garcia-FernandezManuel Desco
Nov 23, 2006·Journal of the American College of Cardiology·Roberto M LangDavid J Sahn
Oct 21, 2016·Circulation Research·Joyce BischoffRobert A Levine
Jun 1, 1997·Journal of Cardiothoracic and Vascular Anesthesia·I S Salgo

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