Table 4.

Per-lesion analysis for the mismatched CACs in the cases outside of 95% limits of agreement on Bland–Altman analysis.

	Mismatched lesions (n=90)
Mislabeling of coronary artery	36 (40%)
LAD calcification labeled as LM	35 (38.9%)
LCx calcification labeled as LM	1 (1.1%)
False positive or over-estimation of CAC	14 (15.6%)
Image artefacts	3 (3.3%)
Aortic wall or valve calcification	10 (11.1%)
Mitral annular calcification	1 (1.1%)
False-negative or under-estimation of CAC	40 (44.4%)
LM	2 (2.2%)
LAD	7 (7.8%)
LCx	15 (16.7%)
RCA	16 (17.8%)

CAC, coronary artery calcium; LAD, left anterior descending; LM, left main; LCx, left circumflex; RCA, right coronary artery.