Comparison analysis of conventional criteria versus Rosemont criteria for diagnosis of chronic pancreatitis by endoscopic ultrasonography

Abstract

Objective To compare the Rosemont criteria with conventional criteria for diagnosis of patients with chronic pancreatitis (CP) by endoscopic ultrasonography (EUS). Methods The data of patients with CP confirmed in Peking Union Medical College Hospital from January 2001 to September 2011 were retrospectively analyzed. Pancreatic parenchymal and ductal features were evaluated by conventional criteria and Rosemont criteria using EUS, respectively. The diagnostic value of the two kinds of criteria were compared. Results Among the 45 CP patients with mean age of 48.8 years, 34 were male, and 11 were female. Nineteen cases were in clinical phase 1, 8 in clinical phase 2, and 18 in clinical phase 3. The diagnostic yield of conventional criteria with at least 3 imaging features was higher than that of Rosemont criteria (51.1% VS 31.1%, P=0.004), but there was no significant difference between conventional criteria with at least 5 imaging features and Rosemont criteria (26.7% VS 31.1%, P>0.05). In CP patients of clinical phase 1, the diagnostic yield of conventional criteria with at least 3 imaging features was higher than that of Rosemont criteria (47.4% VS 21.1%, P=0.033), but there was no significant difference in phase 2 and 3. Conclusion Conventional criteria shows higher diagnostic yield than Rosemont criteria. It will be more valuable to apply conventional criteria with at least 3 imaging features of EUS in early suggestive chronic pancreatitis. Key words: Pancreatitis, chronic; Endosonography; Early diagnosis; Forecasting, clinical