barium enema examination

例句：

1. 1.The doctor ordered a barium enema to help diagnose her digestive issues.
   医生开了一个钡剂灌肠来帮助诊断她的消化问题。
2. 2. During the examination, the patient was asked to drink a solution of barium and then defecate in front of the doctor.
   在检查过程中，患者被要求喝一种含钡的溶液，然后当着医生的面排便。
3. 3. The barium enema examination is an important diagnostic tool for detecting colon cancer.
   钡剂灌肠检查是检测结肠癌的重要诊断工具。