Application of magnetic resonance diffusion weighted imaging for detecting hepatic lesions

Objective To evaluate the efficacy of MR diffusion-weighted imaging (DWI) values in diagnosis and identify of liver lesions. Methods A total of 60 patients with hepatic lesions MRI findings were retrospectively enrolled. DW-MRI was performed with b-factors of 0 and 500 s/mm2. Mean ADC measurements were calculated.Results On DWI((b=500 s/mm2),The mean ADC value of normal liver was (1.51 ±0.16)×10-3mm2/s. The mean ADC values of hepatocellular carcinoma,metastasis ,hemangioma and cyst were (1.34±0.12)×10-3mm2/s,(1.79±0.21)×10-3mm2/s,(3.23±0.28)×10-3mm2/s,and (4.07±0.65)×10-3mm2/s,respectively. A significant difference was showed between hepatic malignances and hepatic cyst and hemangioma (P0.05).Conclusion MR DWI and ADC values are useful in diagnosis of benign from malignant hepatic lesions.