Comparative Reasearch Of CT And MRI In Differentiating Pancreatic Cancer From Mass-forming Focal Pancreatitis

Aim:This paper aims at exploring the practical value of CT signs combined with magnetic resonance-diffusion weighted imaging(MR-DWI)and magnetic resonance cholangiopancreatography(MRCP)in the differential diagnosis of pancreatic cancer and mass-forming focal pancreatitis.Methods:Retrospective analysis of the imaging data of 61 patients with pancreatic mass lesions,who diagnosed with postoperative pathology in our hospital from May 2013 to May 2020,analyzed the image diagnostic value of CT signs combined with magnetic resonance-diffusion weighted imaging(MR-DWI)and magnetic resonance cholangio-pancreatography(MRCP)Results:There was no significant difference between pancreatic cancer and mass-forming focal pancreatitis in mass diameter,pancreatic duct dilatation,peripancreatic vascular invasion,peripancreatic and retroperitoneal lymph node enlargement(P > 0.05).The incidences of double duct sign,necrotic cystic degeneration and high signal rate on diffusion weighted imaging in pancreatic cancer were higher than those in mass-forming focal pancreatitis.The incidence of mass calcification,pseudocyst,pancreatic duct stone,duct penetration sign and net enhanced CT and ADC values in arterial phase and portal phase of pancreas were lower than those in mass-forming focal pancreatitis(P < 0.05).The incidence of pancreatic duct stones and right anterior renal fascia thickening in patients with pancreatic cancer was significantly lower than that in patients with mass-forming focal pancreatitis(P < 0.05).Conclusions:CT signs combined with MR-DWI and MRCP can improve the sensitivity of clinical diagnosis of pancreatic cancer and mass pancreatitis.