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Assessment of Left Ventricular Parameters Using 16-MDCT and New Software for Endocardial and Epicardial Border Delineation

Thomas Schlosser1, Konstantin Pagonidis1, Christoph U. Herborn1, Peter Hunold1, Kai-Uwe Waltering1, Thomas C. Lauenstein1 and Jörg Barkhausen1

1 All authors: Department of Diagnostic and Interventional Radiology, University Hospital Essen, Hufelandstrasse 55, 45122 Essen, Germany.



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Fig. 1. —Left ventricular end-diastolic volume assessed using MRI and CT. CTAUTO = automatic contour detection; CTMAN = manual contour tracing.

 


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Fig. 2A. —Bland-Altman plots of end-diastolic volume. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 2B. —Bland-Altman plots of end-diastolic volume. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C.)

 


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Fig. 2C. —Bland-Altman plots of end-diastolic volume. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 3. —Left ventricular end-systolic volume assessed using MRI and CT. CTAUTO = automatic contour detection; CTMAN = manual contour tracing.

 


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Fig. 4A. —Bland-Altman plots of end-systolic volume. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 4B. —Bland-Altman plots of end-systolic volume. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 4C. —Bland-Altman plots of end-systolic volume. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 5. —Ejection fraction assessed using MRI and CT. CTAUTO = automatic contour detection; CTMAN = manual contour tracing.

 


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Fig. 6A. —Bland-Altman plots of ejection fraction. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 6B. —Bland-Altman plots of ejection fraction. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 6C. —Bland-Altman plots of ejection fraction. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 7. —Left ventricular mass assessed using MRI and CT. CTAUTO = automatic contour detection; CTMAN = manual contour tracing.

 


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Fig. 8A. —Bland-Altman plots of left ventricular mass. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 8B. —Bland-Altman plots of left ventricular mass. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 8C. —Bland-Altman plots of left ventricular mass. Bland-Altman plots were assessed using MRI versus CTauto (automated contour detection, A), MRI versus CTmanual (manual tracing, B), and CTauto versus CTmanual (C).

 


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Fig. 9A. —Examples of end-diastolic and end-systolic MR and CT images. End-diastolic MR (top row) and CT images and automatically detected (center row) and manually traced (bottom row) endo- and epicardial contours. Only each second short-axis slice is displayed. See next page for end-systolic images.

 


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Fig. 9B. —Examples of end-diastolic and end-systolic MR and CT images. End-systolic MR (top row) and CT images and automatically detected (center row) and manually traced (bottom row) endo- and epicardial contours. Only each second short-axis slice is displayed. See previous page for end-diastolic images.

 

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