small intestinal endoscopy

例句：

1. 1.This procedure is used to diagnose and treatvarious gastrointestinal diseases.
   这种程序用于诊断和治疗各种胃肠道疾病。
2. 2.The patient underwent small intestinal endoscopyfor a suspected case of inflammatory bowel disease.
   患者因怀疑患有炎症性肠病而接受了小肠内窥镜检查。
3. 3. During the examination, the doctor inserteda flexible tube into the patient'ssmall intestine to view the interior.
   在检查过程中，医生将一根灵活的管子插入患者的小肠以查看内部情况。