Three-dimensional Echocardiographic Volume Computation by Polyhedral Surface Reconstruction: In Vitro Validation and Comparison to Magnetic Resonance Imaging
作者： Aasha Sundaresan Gopal , Donald L. King , Jose Katz , Lawrence M. Boxt , Donald L. King
DOI: 10.1016/S0894-7317(14)80541-5
关键词:
摘要: Two-dimensional echocardiographic methods of left ventricular volume computation are limited by geometric assumptions and image plane positioning error in the nonvisualized dimension. We evaluated a three-dimensional (3D) method that addresses these limitations. Our uses algorithm based on polyhedral surface reconstruction (PSR) nonparallel, unequally spaced, nonintersecting short-axis planes. Seventeen balloon phantoms were subjected to 3D echocardiography-PSR magnetic resonance imaging (MRI) compared true volumes determined water displacement. The results for were: accuracy=2.27%, interobserver variability=4.33%, r = 0.999, SEE=2.45 ml, p 0.995, SEE=7.01
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