dye endoscopy

例句：

1. 1. Dye endoscopy is a diagnostic tool used to examine the interior of the digestive tract.
   染料内窥镜检查是一种用于检查消化系统内部的工具。
2. 2.During dye endoscopy, the patient's gastrointestinal tract is visualized through a flexible tube inserted into the mouth or anus.
   在染料内窥镜检查期间，患者通过插入口腔或肛门的柔性管可视化其胃肠道。
3. 3. The dye endoscopy procedure helps detect early signs of cancer in the esophagus and stomach.
   染料内窥镜检查程序有助于检测食管和胃早期癌症的迹象。