胃肠病是内科最常见的疾病。由于胃肠道是与外界相通的中空管道,所以检查胃肠道疾病可有两种主要方法:一是经口吞入或经肛门注入钡剂(硫酸钡,一种不透X光的物质),在X光下显露胃肠道的外形,这就是一般所说的胃肠透视。再一种是经口腔或肛门插入某种器械,直接观察胃肠的内腔,这种器械就是胃肠纤维内窥镜(简称“胃肠纤镜”)。在胃肠道疾病的诊断上,胃肠道透视方便、安全,完全无创伤,不带给病人任 Gastrointestinal disease is the most common medical disease. Since the gastrointestinal tract is a hollow tube that communicates with the outside world, there are two main ways to check for gastrointestinal disease: one is swallowed by mouth or injected through the anus with barium (barium sulfate, a substance that does not radiate X-rays) , Revealed in the X-ray gastrointestinal shape, which is generally referred to as gastrointestinal fluoroscopy. Another is through the oral or anal insertion of certain equipment, direct observation of the gastrointestinal lumen, this device is gastrointestinal endoscopy (referred to as “gastrointestinal fibrinoscope”). In the diagnosis of gastrointestinal diseases, gastrointestinal perspective convenient, safe, completely non-invasive, does not give the patient any