Table 7. Comparison of the diagnostic efficacy of MRI for HCC tumors of various liver parenchymal fibrosis stages (tumor size, 1–2cm).

	Fibrosis 4	Fibrosis 0–3	P value
	(cirrhosis)	(non-cirrhosis)
Sensitivity	30/37 (81.1%)	5/6 (83.3%)	1.000
Specificity	1/5 (20%)	8/10 (80%)	0.089
PPV	30/34 (88.2%)	5/7 (71.4%)	0.268
NPV	1/8 (12.5%)	8/9 (88.9%)	0.003
Accuracy	31/42 (73.8%)	13/16 (81.3%)	0.736
	Fibrosis 3–4	Fibrosis 0–2
Sensitivity	32/39 (82.1%)	2/3 (66.7%)	0.479
Specificity	1/5 (20%)	1/1 (100%)	0.333
PPV	32/36 (88.9%)	2/2 (100%)	1.000
NPV	1/8 (12.5%)	1/2 (50%)	0.378
Accuracy	33/44 (75%)	3/4 (75%)	1.000
	Fibrosis 2–4	Fibrosis 0–1
Sensitivity	32/39 (82.1%)	2/3 (66.7%)	0.479
Specificity	1/5 (20%)	1/1 (100%)	0.333
PPV	32/36 (88.9%)	2/2 (100%)	1.000
NPV	1/8 (12.5%)	1/2 (50%)	0.378
Accuracy	33/44 (75%)	3/4 (75%)	1.000
	Fibrosis 1–4	Fibrosis 0
Sensitivity	33/41 (80.5%)	1/1 (100%)	1.000
Specificity	1/5 (20%)	1/1 (100%)	0.333
PPV	33/37 (89.2%)	1/1 (100%)	1.000
NPV	1/9 (11.1%)	1/1 (100%)	0.200
Accuracy	34/46 (73.9%)	2/2 (100%)	1.000

PPV, positive predictive value; NPV, negative predictive value