蛋清容积的大小对双针射频热凝范围的影响  

Morphological Analysis of Bipolar Radiofrequency Thermoset Produced by Different Containers Filled with Different Volumes of Egg White

作　　者：袁宏杰[1,2] 林建[1] 李静[1] 槐洪波[1] 

机构地区：[1]南京大学医学院附属鼓楼医院镇痛科,江苏南京210008 [2]江苏省海安县人民医院

出　　处：《解剖与临床》2011年第4期279-281,共3页Anatomy and Clinics

摘　　要：目的：观察双极射频模式下不同蛋清容积形成热凝物的形态.方法：选用三个大小不同的圆柱形容器A、B和C,其体积分别为83 183.3 mm3、49 334.1 mm3、32 046.8 mm3.使用工作端长度为10 mm,20 G baylis电极针,在双极射频模式下,以不同的间距分别平行固定在盛满蛋清的A容器、B容器和C容器中,均给予90℃、900 s射频热凝.对形成的热凝物表面形态摄像并进行相关指标的测量分析.结果：在条件相同的双极射频模式下,A容器、B容器和C容器分别在电极间距为12 mm、20 mm和24 mm形成最大带状热凝物.其最大热凝面积分别为181.1 mm2、272.4 mm2和432.8 mm2.结论：相同实验条件下,减小容器容积,可增大形成带状热凝物的两电极最大间距和热凝物面积,但电极针外侧热凝物长度基本没有明显变化.Objective： To analyze the relationship between the volumes of container filled with egg white and lesion in the bipolar radiofrequency mode. Methods：Three containers filled with egg white were used. Container A with the volume of 83 183.3 mm3 , container B with the volume of 49 334.1 mm3 and container C with the volume of 32 046.8mm3. Pairs of 20 G baylis radionics cannuulae with 10 mm active tips were used, secured in a 4 mm equivalent deviate parallel position apart and submerged in egg white. 90~C , 900 seconds radiofrequency thermocoagulation was performed. The progress of thermoset formation was photographed and an- alyzed. Results：Under the same experimental condition, continuous strip thermoset in container A, B and C was formed when the electrode distance was 12 mm, 20mm and 24 mm correspondingly, and the maximum ther- moset areas of the three groups were 181.1 mm2 , 272.4 mm2 and 432.8 mm2 respectively. Conclusions：With the same radionics cannulae, bipolar radiofrequency creates smaller continuous strip lesions in the big container which is filled with egg white than that in the large one.

关 键 词：双极射频 椎间盘 盘源性腰痛 蛋清 热凝物 

分 类 号：R681.55[医药卫生—骨科学]