Application of MRI diffusion weighted imaging on the diagnosis of hepatic lesions

Objective To study the characteristics of MRI diffusion weighted imaging (DWI) and apparent diffusion coefficient ( ADC) measurement on the diagnosis of hepatic mass lesion. Methods Date of MRI DWI and ADC were obtained in 25 cases with normal subjects and 94 cases with hepatic mass lesions.ADC values were surveyed. Results On DWI((b =600s/mm2), ADC values were(1.52±0.24)×10-3mm2/s, (4.04±0.64)×10-3mm2/s(,2.57±0.47)×10-3mm2/s,(1.43±0.51)×10-3mm2/s(,1. 76 ±0.76)×10-3mm2/s for normal liver,hepatic cyst,hepatic hemangioma, hepatic cancer and metastasis respectively. An obvious difference was showed between he- patic malignances and hepatic cyst and hemangioma(p 0.01). Conclusion It is of significance on the diagnosis and differential diagnosis of hepatic mass lesions by analysing DWI and ADC value.