Computer-aided diagnosis for contrast-enhanced ultrasound in the liver

Table 4 Performance of CAD scheme for classification in five categories using computerized scheme n (%)

Lesion	n	Classification with CAD
		HCC			Metastasis	Hemangioma
		w-HCC	m-HCC	p-HCC
Total	103
w-HCC	24	19 (79.2)	1 (4.2)	2 (8.3)	2 (8.3)	0 (0.0)
m-HCC	28	5 (17.9)	14 (50.0)	4 (14.3)	3 (10.7)	2 (7.1)
P-HCC	9	1 (11.1)	0 (0.0)	7 (77.8)	1 (11.1)	0 (0.0)
Metastasis	26	2 (7.7)	1 (3.8)	0 (0.0)	23 (88.5)	0 (0.0)
Hemangioma	16	0 (0.0)	0 (0.0)	0 (0.0)	1 (6.3)	15 (93.8)

Overall diagnostic accuracy: 78/103 (75.7%). CAD performance was evaluated by a leave-one-case-out methods.Reproduced, with modification, from Shiraishi et al[32], Med Phys 2008; 35: 1734-1746.