Table 3. Results of Objective Efficacy Assessment.

Region-of-Interest	Reader 1			Reader 2			Final Assessment
	Iohexol-380 (n = 114)	Iohexol-350 (n = 110)	P	Iohexol-380 (n = 114)	Iohexol-350 (n = 110)	P	Iohexol-380 (n = 114)	Iohexol-350 (n = 110)	Estimated Effect Size (95% CI)	P
Ascending aorta	372.8 ± 68.3	357.3 ± 61.7	0.078	376.9 ± 70.3	356.1 ± 61.2	0.019	375.8 ± 71.4	356.3 ± 61.5	0.292 (1.9, 37.0)	0.030
Left main coronary artery	350.2 ± 73.2	344.3 ± 64.7	0.527	357.9 ± 71.3	358.7 ± 63.7	0.930	358.5 ± 72.5	358.3 ± 65.2	0.003 (-18.0, 18.3)	0.988
Left ventricle	299.2 ± 77.6	314.9 ± 59.3	0.089	330.7 ± 68.7	337.3 ± 55.7	0.429	332.2 ± 99.8	345.7 ± 102.9	-0.133 (-40.2, 12.2)	0.319

CI = confidence interval