肝硬化患者一旦出现食管静脉曲张,则曲张静脉破裂出血的危险度为25％～35％。由于其预后不良,发现可能出血的高危患者并预防首次出血成为关键的问题。已经证明使用高频率小探头的高分辨超声内镜检测曲张静脉的大小、半径、横断面表面积(CSA)和血管壁厚度的准确率和重复性均较好。截止目前,超声内镜尚未用于食管曲张静脉首此破裂出血危险度的预测。本研究的目的是根据超 In patients with cirrhosis esophageal varices, variceal bleeding risk of 25% to 35%. Because of their poor prognosis, finding high-risk patients who may have bleeding and preventing first-time bleeding is a key issue. High-resolution endoscopic ultrasonography with a small probe with high frequency has been shown to be superior in accuracy and repeatability of varicose vein size, radius, cross-sectional surface area (CSA) and vessel wall thickness. To date, endoscopic ultrasonography has not been used to predict the risk of first rupture bleeding in the esophageal varices. The purpose of this study is based on ultra