Quantitative evaluation of diffusion-weighted magnetic resonance imaging of focal hepatic lesions

Table 1 ADC values in focal hepatic lesions (×10^–3 mm²/s)

Hepatic lesion	b = 100	b = 500	b = 1 000
Hepatocellular carcinoma	0.56-1.33	0.60-1.31	0.57-1.23
Hepatic metastases	0.75-1.62	0.71-1.59	0.72-1.35
Cavernous hemangioma	1.26-2.54	1.32-2.36	1.37-2.21
Hepatic cyst	2.70-3.85	2.73-3.71	2.78-3.51

Table 2 ADC value in focal hepatic lesions (b = 1 000 mm²/s, mean±SD)

Hepatic lesion	ADC value (×10-3 mm2/s)
Hepatocellular carcinoma	0.95 ± 0.11
Hepatic metastases	1.13 ± 0.21
Cavernous hemangioma	1.86 ± 0.36
Hepatic cyst	3.14 ± 0.31

Table 3 Ratio of ADC values of lesion/liver between hepatocellular carcinoma and hepatic metastasis (mean ± SD)

Hepatic lesion	Coverage	Ratio of ADC values of lesion/liver
Hepatocellular carcinoma	0.73-1.05	0.91 ± 0.11
Hepatic metastases	1.07-1.43	1.21 ± 0.18