Imaging examination methods of hepatobiliary and pancreatic diseases

Imaging methods of liver, gallbladder and pancreas;

1. CT examination of liver: ① plain CT scan; ② Enhanced scanning: Increase the density difference between normal liver tissue and focus, and show the focus that can't be found by plain scanning, which is helpful to distinguish the nature of focus.

2. Biliary system

(1)X-ray plain film examination On the plain film, we can observe whether there are stones, calcification of gallbladder wall or abnormal gas shadow without X-ray.

(2) Contrast examination ① Oral cholecystography; ② Venous cholangiography; ③ Retrograde endoscopy and collection of cholangiopancreatography (ER). CP) On the big website.

(3)CT examination ① plain scan; ② Enhanced scanning.

3. Pancreatic examination

(1)X-ray check the X-ray plain film to find out whether there is calcification and stones in the pancreas. Retrograde cholangiopancreatography is helpful for the diagnosis of chronic pancreatitis, pancreatic head cancer and ampullary cancer.

(2)CT examination CT can show the size, shape, density and structure of the pancreas and distinguish whether the lesion is cystic or solid, which is the most important imaging examination method for pancreatic diseases.