A Comparative Analysis Between Ultrasonic And CT Examination Of Acute Pancreatitis

Objective:To explore the value of Ultrasound and CT in the diagnosis,classification and prognosis assessment of acute pancreatitis(AP).Methods:According to Atlanta criteria 105 cases of acute pancreatitis were collected and divided into two types:77 cases of mild acute pancreatitis(MAP) and 28 cases of severe acute pancreatitis(SAP).The etiology,age and sexuality of each enrolled patients were collected.The positive rate of acute pancreatitis detected by Ultrasound and CT scan,and the prognosis assessment were analyzed.Meanwhile,the difference between Ranson score and CT scoring system of acute pancreatitis were analyzed and multivariate logistic regression analysis with influential factors for acute pancreatitis was also done.Results:No significant difference was found between severity and etiological category of acute pancreatitis(P＞0.05).The severe degree of acute pancreatitis had no relevance with the age and sexuality(P＞0.05).The positive rate of acute pancreatitis detected by CT scan(79.0%) was obviously higher than that by ultrasound(38.1%).No significant difference of the positive rate was found between CT plain scan and contrast-enhanced scan(P＞0.05).Significant difference was found in severe acute pancreatitis detection between Ranson score and CT score(P＜0.05). Pancreatic necrosis,pseudocyst,and effusion of small mesenteric root were the main factors for the degree of severity in acute pancreatitis.Conclusion:Abdominal CT scan was still an important method to evaluate the acute pancreatitis, in particularly abdominal enhanced CT scan was still the best method for the diagnosis of pancreatic necrosis.Pancreatic necrosis,pseudocyst,effusion of small mesenteric root were the main factors that influenced the degree of severity in acute pancreatitis.In early period(48 hours) of acute pancreatitis,Ranson score system was the main assessment criteria,but the findings of abdominal CT scan in and around the pancreas violations was mainly used to evaluate the prognosis of acute pancreatitis in the later period.