Risk Prediction of Bleeding in Liver Cirrhosis by Combi-elastography

Inclusion Criteria: * 18-80 years old, no gender limit; * The clinical diagnosis is in line with patients with liver cirrhosis caused by chronic hepatitis B, and the gastroscopy is in line with the indications of portal hypertension; * Gastroscopy needs to provide the degree of gastroesophageal varices; * Sign the informed consent form. Exclusion Criteria: * Patients with cirrhosis and portal hypertension because of other causes or combined with other causes(such as viral hepatitis other than hepatitis B,Autoimmune liver disease, alcoholic liver disease, metabolism-related fatty liver disease, etc.) * Patients with a history of spleen-related operations, such as splenectomy, splenic embolism; * Patients undergoing portosystemic shunt or TIPS; * Isolated esophageal venous tumor and its bleeding patients; * History of upper gastrointestinal tumor or bleeding from gastric ulcer , etc; * Those with serious diseases of other systems that cannot cooperate with elastography examination, such as heart failure, renal failure, mental illness, etc; * Ascites before liver and spleen result unable to complete elasticity examination; * Pregnant patients.