The experimental study of selective arterial embolization in the lumbar spine of dogs
- VernacularTitle:选择性椎体供血动脉栓塞的动物实验研究
- Author:
Caifang NI
;
Ming XU
;
Yizhi LIU
;
Yi DING
;
Huilin YANG
;
Tiansi TANG
- Publication Type:Journal Article
- Keywords:
Animals, laboratory;
Vertebral artery;
Embolism
- From:
Chinese Journal of Radiology
2001;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish the model of acute spinal infarction, to evaluate the relative factors affecting results in spinal embolization, and to provide the theorial basis with the preoperative embolization of spinal tumors. Methods Through the SAE of the lumbar arteries, the neuro function of the posterior legs of dogs, MRI findings, and pathologic changes of the spinal specimen were observed in 12 dogs. The embolizing agents was gelfoam(GF). Results The significant ischemia changes of spinal column and the corresponding muscles at the occluding spinal after embolizing more than one segmental arteries occurred in 9 dogs, but there were no paraplegia or obvious changes in 3 dogs having been embolized single lumbar arteries no matter they sent out the radiculomedullary artery(RA) or not. Paraplegia occurred in one dog after embolizing the multisegmental arteries. Conclusion (1) The method of SAE in dog can be used to set up the experimental model of the acute ischemia of spine. (2)The occlusion in single segmental arteries can not result in the infarction of the whole spine. (3)The serious complication may result from embolizing multisegmental spinal arteries (especially sending out RA) (4) The protecting embolization should be carried out in order to decrease the reaction during SAE in spine.
