The Value of MRI Apparent Diffusion Coefficient in Interstitial Edema Pancreatitis and Acute Necrotizing Pancreatitis

Objective To investigate the differential diagnostic value of the Apparent Diffusion Coefficient in Interstitial Edema Pancreatitis (IEP) and Acute Necrotizing Pancreatitis (ANP) . Me thods Twenty-four ANP patients and 53 IEP patients received routine MRI and functional imaging DWI (b value is 0, 800 s/mm2) scanning were retrospectively analyzed. We measured the ADC values of ANP edema, hemorrhage, necrosis areas and the ADC values of the IEP between January 2017 and July 2017. Statistical methods were used to compare and analyze the ADC values of ANP edema, hemorrhage, necrosis areas and the ADC values of the IEP. Re s ults The ADC values of the IEP were (1.094±0.170) ×10-3 mm2/s, and the values of ANP edema, hemorrhage, necrosis areas were (1.099±0.127) ×10-3 mm2/s, (0.584±0.061) ×10-3 mm2/s, (2.084±0.323) ×10-3 mm2/s.There was no statistically significant difference in ADC values in edema area between IEP and ANP (P = 0.884) .Single factor analysis of variance and multiple comparison was used to identify the ADC values of IEP and the values of ANP edema, hemorrhage, and necrosis areas. The results were statistically significant (P < 0.001) . Conclus ion The ADC values of IEP and ANP edema zone have no obvious difference. The ADC values of ANP hemorrhage area are significantly lower than those of edema area and IEP. The ADC values of ANP necrotic area are significantly higher than those of edema and hemorrhage area. ADC values have important value in identifying IEP and ANP.