Table 4.

Coefficient of variation (CV) of Agatston score for each stenosis for SE and DE protocols with auto-mAs, 160 mAs, and 260 mAs exposure.

	Coefficient of Variation
	236 mg/cm3 (equal-density stenosis)			50% (equal-size stenosis)
dataset	12.5%	25%	50%	102 mg/cm3	236 mg/cm3	382 mg/cm3
4mm vessel
SE	3.16	0.17	0.07	0.35	0.04	0.02
DE auto-mAs	0.59§	0.33†	0.19†	0.23	0.25†	0.10†
DE 160 mAs	0.60§	0.49†	0.12	0.24	0.06	0.06†
DE 260 mAs	1.30	0.26	0.04	0.21	0.09	0.05†
4.5mm vessel
SE	2.11	0.21	0.05	0.22	0.05	0.03
DE auto-mAs	0.52§	0.35†	0.12	0.28	0.09	0.07
DE 160 mAs	0.52§	0.12	0.10	0.28	0.13	0.03
DE 260 mAs	0.36§	0.27	0.06	0.27	0.08	0.03

^†Lower bound of the 95% CI is larger than the upper bound of 95% CI of the corresponding CV for SE

^§Upper bound of the 95% CI is smaller than the lower bound of 95% CI of the corresponding CV for SE