为探讨Ｂ超检查对因门脉高压所致出血危险性的预测价值，本文对１３２例肝硬化患者进行观察。结果表明：当肝硬化患者肝门静脉直径为１．２～１．３ｃｍ，脾静脉直径为０．８～０．９ｃｍ时，可作为门脉高压的可疑指标；当门静脉直径≥１．４ｃｍ，脾静脉≥１．０ｃｍ，门静脉右支主于血流速度≤１５ｃｍ／ｓ时，可作为预测肝硬化并发上消化道出血危险的参考指标。 In order to investigate the predictive value of B-ultrasound for the risk of bleeding due to portal hypertension, 132 patients with cirrhosis were observed. The results showed that when the diameter of hepatic portal vein of patients with cirrhosis is 1.2 ~ 1.3cm and the diameter of splenic vein is 0.8 ~ 0.9cm, it can be regarded as a suspicious index of portal hypertension. When the diameter of portal vein is ≥1.4cm, Vein ≥ 1.0cm, the right portal vein right main blood flow velocity ≤ 15cm / s, can be used as a prediction of cirrhosis of the upper gastrointestinal bleeding risk of reference index.