翻译：肝内胆管一级支及以上；肝总管水平；胆总管及以下这是我们前期的一组研究数据在这个表里我们可以发现相比常规超声腔内CEUS显著提高了对胆道梗阻部位诊断的水平尤其对肝总管及以上部位的梗阻判断准确率为100。

Translation:

First-order intrahepatic bile ducts and above; horizontal level of the hepatic duct; common bile duct and below.

This is a set of research data from our preliminary study. In this table, we can see that compared to conventional ultrasound, intracavitary CEUS significantly improves the diagnostic level of bile duct obstruction sites, especially in the diagnosis of obstructions in the hepatic duct and above, with an accuracy rate of 100%.