Table 5.

CAC scoring in CSCT vs. manual and automatic CAC scoring in CTAC

	CSCT vs CTAC rest		CSCT vs CTAC stress
	Manual	Automatic	Manual	Automatic
Accuracy [CI]	0.76 [0.68–0.82]	0.71 [0.62–0.78]	0.77 [0.69–0.83]	0.70 [0.62–0.77]
κ [CI]	0.82 [0.76–0.88]	0.74 [0.65–0.82]	0.79 [0.73–0.89]	0.70 [0.61–0.80]

Accuracy (top) and linearly weighted Cohen’s κ for CVD risk category assignment (bottom) with corresponding 0.95% confidence interval between manual expert calcium scoring in dedicated CSCT, and manual and automatic calcium scoring in CTAC images acquired at rest and stress taking different ranges of Agatston scores between CSCT and CTAC scan into account. There were no significant differences between κ values and accuracies for stress vs rest and for for automatic vs manual scoring