由于小肠远离口腔和肛门,是整个胃肠道中最难被检测的部分,又因成人的小肠长约5～7m,占整个胃肠道60%～70%,其高度弯曲、移动度大的特点是影响诊断的主要原因。因此,对小肠疾病的诊断远落后于胃肠道其他部位,应用以往的检查手段如:小肠气钡双重造影、放射性核素扫描及动脉造影等检查,患者痛苦大、对病变发现能力低(约40%)、定 As the small intestine away from the mouth and anus, the most difficult to detect the entire part of the gastrointestinal tract, but also due to adult small intestine about 5 ~ 7m, accounting for 60% to 70% of the entire gastrointestinal tract, its highly curved, large mobility features Is the main reason that affects the diagnosis. Therefore, the diagnosis of small bowel disease lags far behind other parts of the gastrointestinal tract, the use of previous inspection methods such as: small bowel double contrast barium, radionuclide scan and arteriography and other tests, patients with pain, low ability to detect lesions (about 40%), set