Abstract
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.
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Loertscher, R., Burkart, F., Schmitt, H.E. et al. Reproducibility of left ventricular volume determinations with use of a semi-automated system. Cardiovasc Intervent Radiol 7, 53–58 (1984). https://doi.org/10.1007/BF02552679
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DOI: https://doi.org/10.1007/BF02552679