Reproducibility and accuracy of echocardiographic measurements of left ventricular parameters using real-time three-dimensional echocardiography
Carly Jenkins, BS,
Kristen Bricknell, BS,
Lizelle Hanekom, MD and
Thomas H. Marwick, MD, PhD, FACC*
University of Queensland, Brisbane, Australia
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Figure 1 (A) Analysis of left ventricular (LV) volume using three-dimensional echocardiography. The figure demonstrates selection of one image (upper right), automated contour-tracing (upper left), superimposition of all contours in three-dimensional space (lower left), and the resulting time-volume curve (lower right). (B) Analysis of LV volume using magnetic resonance imaging. The position of apex and base is shown on the longitudinal plane images, and endocardial and epicardial borders are traced in the short-axis views. EDV = end-diastolic volume; EF = ejection fraction; ESV = end-systolic volume; LVM = left ventricular mass.
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Figure 2 Test-retest comparisons of sequential ejection fraction (EF) for two-dimensional (2D) echocardiography (left panels) and real-time three-dimensional (3D) echocardiography (right panels) (n = 50).
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Figure 3 Test-retest comparisons of sequential mass measurements for M-mode (left panels), two-dimensional echocardiography (center panels), and real-time three-dimensional (3D) echocardiography (right panels) (n = 50).
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Figure 4 Magnetic resonance imaging (MRI) comparisons with two-dimensional echocardiography (2DE) (left panel) and real-time three-dimensional (3D) echocardiography (right panel) for ejection fraction (EF) (n = 50).
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Figure 5 Magnetic resonance imaging (MRI) comparisons with M-mode (left panel), two-dimensional (2D) echocardiography (center), and real-time three-dimensional (3D) echocardiography (right) for mass (n = 50).
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