Best-Quality Vessel Identification Using Vessel Quality Measure in Multiple-Phase Coronary CT Angiography

Table 3

Cohen’s kappa statistics estimation of the agreement between radiologist 1 and the automated selection using VQM of the best-quality branch in the corresponding vessel pairs, between radiologist 2 and the automated selection, and between the two radiologists.

	Number of branches	⁢Kappa
		Rad 1-computer	Rad 2-computer	Rad 1-Rad 2
Case  1	31	0.87	0.80	0.87
Case  2	14	0.81	0.81	0.65
Case  3	25	0.68	0.51	0.68
Case  4	38	0.56	0.50	0.61
Case  5	18	0.24	0.33	0.67
Case  6	26	0.21	0.32	0.18
Case  7	15	0.04	−0.13	0.33
Overall	167	0.49	0.45	0.57