Pancreatitis can be detected by ultrasound, but is susceptible to gastrointestinal gas. The ultrasound performance of acute and chronic pancreatitis is different. 1. Acute pancreatitis: Acute interstitial edema can be seen in the pancreas enlargement is diffuse, the border is not clear internal echo sparse; necrotizing pancreatitis, pancreas is obviously enlarged, the edge of the blurred. Acute pancreatitis is often accompanied by inflation and dilatation of the neighboring bowel curvature, which affects the results. 2. Chronic pancreatitis: the pancreas can be small or enlarged, irregular contour, pancreatic parenchyma echogenicity unevenly enhanced, coarsening; pancreatic duct calcification can be manifested as a point or patchy strong echogenic shadow with posterior acoustic shadow. Although ultrasound is the test of choice for pancreatitis, CT is the primary imaging test for the diagnosis of pancreatitis.