The Retrospective Study Of Ultrosonographic Application In Diagnosis Of Pancreatitis And Pancreatic Tumor

Objective: To evaluate the ultrasonographic value in diagnosis ofpancreatitis by analyzing ultrasonographic and laboratory α-amylaseexamination results of pancreatitis patients. and to investigate the diagnosis ofpancreatic tumor with ultrasonography. Methods: Part 1: Seventy-two pancreatitis patients who acceptedultrasound and α-amylase examination were analyzed retrospectively; Part 2:20 operated pancreatic tumor cases diagnosed by sonography and testified bypathology were analyzed retrospectively, the characteristics of sonography werecontrasted with other clinical manifestations. Results: Part 1: Each type of pancreatitis patients had certain sonographiccharacteristics. 70.7% of acute oedematous pancreatitis,92.9% of acute necroticpancreatitis and 64.7% of acute attack of chronic pancreatitis were correctlydiagnosed, the total coincidence rate was 73.6%. The difference of α-amylasedata between acute pancreatitis and acute attack of chronic pancreatitis was notsignificant (P>0.05).There also was not significant difference between acuteoedematous pancreatitis and acute necrotic pancreatitis; Part 2: Among 20pancreatic tumors, only one was benign and the others were malignant.Thedetectable rate of pancreatic cancer was 84.2% (16/19), the misdiagnosed ratewas 10.5% (2/19) and the leak-diagnosed rate was 5.3% (1/19). Conclusions: Part 1: Ultrasonography is a useful diagnostic method forpancreatitis and have great values in clinical application;Part 2: In the groupwe studied the detectable rate of pancreatic tumor by ultrasonography is equal toCT.