成人小肠的血管构筑及其临床意义

Vascular architecture of small intestine of adult and its clinical significance

目的：为小肠疾病的临床介入诊断及治疗提供血管构筑解剖基础。方法：对８例正常成人小肠标本采用ＡＢＳ血管铸型、硫酸钡墨汁混悬液血管造影及图像分析进行血管研究。结果：三种方法结论一致，空肠段直动脉通常分三支（两长支、一短支），回肠段直动脉通常分二支（长、短各一支），空—回肠段呈移行改变，直动脉在进入肠壁之前可见吻合现象。直动脉的长度、内径及肠壁血管密度（支／ｃｍ２）均存在解剖部位的差异性（Ｐ＜０．０５）。结论：小肠血管构筑有其规律性。

Objective:In order to provide normal vascular anatomical basis for interventional diagnosis and therapy of intestinal diseases.Methods:Eight adult small intestinal specimens were studied with vascular cast, angiography and image pattern analysis.Results:The study showed that there was no difference of methods (P>0.05).The length and diameter of straight artery and the vascular density of small intestine showed apparently difference in different site(P<0.05). In the jejunum straight artery frequently ramified three branches (two long and one short branches),and it often ramified two branches (one long and one short branches)in the ileum. There were anastomoses between straight arteries.Conclusions:There is regularity in the vascular architecture of small intestine.Angiography has played an important role in clinic.