| Autor: |
Cohen, Marc, Monsen, Craig, Francis, Xavier, Sherman, Warren, Ambrose, John A., Teichholz, Louis E., Fuster, Valentin |
| Zdroj: |
Journal of the American College of Cardiology; July 1987, Vol. 10 Issue: 1 p150-155, 6p |
| Abstrakt: |
To evaluate the reliability of the videodensitometric assessment of right ventricular ejection fraction, 38 patients were studied during diagnostic cardiac catheterization. Digital subtraction images of the right ventricle were obtained in both the right anterior oblique and the left anterior oblique views, using direct intraventricular injection of dilute contrast medium. From the end-diastolic and end-systolic images obtained in each view, analysis of the relative brightness values generated a videodensitometry-based right ventricular ejection fraction for both the right and the left anterior oblique views. These values were compared with those generated by applying the geometry-based Simpson's rule to the orthogonal images. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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