Aim: To compare informative value (IV) of electron-beam tomography (EBT) and multispiral computed tomography (MSCT) in the assay of coronary artery calcinosis with participation of one group of patients.
Material and methods: EBT and MSCT were conducted in 210 patients whose mean age was 60.6+/-7.7years (67% males, mean age 60.2+/-7.6 years; 33% females, mean age 61.5+/-8.3 years) with a verified diagnosis of ischemic heart disease (IHD).
Results: 185 patients had calcium index (CI) from 21 to 2636 units. EBT and MSCT have not detected coronary artery calcinates in 34 patients. In one patient CI was 2 units by EBT and 0 units by MSCT. Mean CI by EBT was 499.4+/-598.2 units, by MSCT--533.7 +/-594.9 units (p = 0.8). The correlation coefficient between IV of the two methods was 0.976 (p < 0.0001). Mean difference between CI by both methods was 34.3 +/-133.6, variation coefficient 22%. There were differences between compatibility of CI in groups of patients with different CI, correlation and variation coefficients in dividing the patients into the subgroups depending on CI. In CI equal to 0-99 units EBT and MSCT correlation coefficient made up 0. 72, coefficient of variation 66%, in CI being 100-399 units these were 0.81 and 27%, in CI of 400-1000 units--0.85 and 16%, in CI exceeding 1000 units--0.95 and 0.4%, respectively. CONCLUSION. High IV correlation was found of MSCT and EBT for coronary artery calcinosis assay. Compatability of the MSCT and EBT data depends on CI