| Autor: |
Loertscher, Rolf, Burkart, Felix, Schmitt, Hans, Emmenegger, Hans, Loertscher, R, Burkart, F, Schmitt, H E, Emmenegger, H |
| Zdroj: |
CardioVascular & Interventional Radiology; Apr1984, Vol. 7 Issue 2, p53-58, 6p |
| Abstrakt: |
Reliability of a computer-assisted system for determination of left ventricular volumes was judged by multiple measurements of rotation ellipsoids, cadaver hearts, and cineangiograms from patients. The volume measurements in cadaver hearts provided a volume correction factor necessary for reproducible results. Variation coefficient for intraobserver and interobserver variability did not exceed 2.3% when calculated using rotation ellipsoids and was highest at 12.0% for the end-systolic volumes derived from patient films. When appropriate calibration methods are employed, different observers can make reliable left ventricular volume measurements aided by such systems. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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