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Variability of repeated coronary artery calcium measurements by electron beam tomography
S Achenbach1, D Ropers, S Möhlenkamp
1Department of Internal Medicine II (Cardiology), University of Erlangen-Nürnberg, Germany. stephan.achenbach@rzmail.uni-erlangen.de
The American Journal of Cardiology
|January 12, 2001
Abstract:
In 120 patients, the mean interscan variability of coronary calcium quantification by electron beam tomography was 19.9% (median 7.8%) for the traditional calcium score, and 16.2% (median 5.7%) for volumetric scoring. Although this difference was not significant, there was a significant influence of the total amount of calcium, number of acquired images, and image noise on interscan reproducibility.