Key result
3D echocardiography using polyhedral surface reconstruction matches MRI phantom volume computation with ~2% accuracy.
Why the study?
Two-dimensional echocardiographic methods for left ventricular volume computation are limited by geometric assumptions and image plane positioning errors in the nonvisualized dimension.
Does 3D echocardiography-PSR accurately compute volume compared to MRI and water displacement in balloon phantoms?
Comparison
3D echocardiography-PSR vs MRI vs true volumes by water displacement
Design
In vitro validation study
Authors
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Supports 3D PSR feasibility for LV volumetry in phantoms; leaves open clinical validation before practice change.
Does 3D echocardiography-PSR accurately compute volume compared to MRI and water displacement in balloon phantoms?
Absolute Event Rate: 2.27% vs 8.01%
3D echocardiography using polyhedral surface reconstruction provides highly accurate and reproducible volume measurements in vitro, comparable to MRI.
Gopal et al. (1992) studied Left ventricular volume computation (n=17). 3D echocardiography-PSR vs. Magnetic resonance imaging (MRI) was evaluated on Volume computation accuracy compared to true volumes. Three-dimensional echocardiography using polyhedral surface reconstruction achieved 2.27% accuracy in volume computation of balloon phantoms, with no significant difference compared to MRI.
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