[1]王 会,胡继红,赵 卫,等.活体猪椎体多极射频消融的热场分布[J].介入放射学杂志,2013,(01):50-053.
 WANG Hui,HU Ji? hong,ZHAO Wei,et al. The thermal field distribution in swine vertebral body created by multi?蛳 polar radiofrequency ablation: an experimental study in vivo[J].journal interventional radiology,2013,(01):50-053.
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活体猪椎体多极射频消融的热场分布 ()

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《介入放射学杂志》[ISSN:1008-794X/CN:31-1796/R]

卷:
期数:
2013年01期
页码:
50-053
栏目:
实验研究
出版日期:
2013-01-25

文章信息/Info

Title:
 The thermal field distribution in swine vertebral body created by multi?蛳 polar radiofrequency ablation: an experimental study in vivo
作者:
 王 会 胡继红 赵 卫 王 滔
Author(s):
 WANG Hui HU Ji?蛳 hong ZHAO Wei WANG Tao.
 Medical Imaging Center, the First Affiliated Hospital, Kunming Medical University, Kunming 650032, China
关键词:
 【关键词】 骨肿瘤 椎体 射频消融 热场 实验研究
文献标志码:
A
摘要:
 【摘要】 目的 通过对活体猪椎体进行射频消融(RFA),观察热场分布,探讨RFA时电极针在椎体中的位置与脊髓的安全性关系以及椎体周围有无软组织损伤。方法 取2头小型香猪,1头消融2个椎体后即刻取标本制作病理切片;另1头消融10个椎体,每周消融2个椎体,完成后第6周取标本制作病理切片。每个椎体消融时按预先设计的测温点测“0”时刻、消融5、10、15、20 min各测温点的温度值。结果各测温点“0”时刻温度值差异无统计学意义(P > 0.05)。当消融5 min后电极针尖温度达到90℃以上时,各测温点的温度值差异有统计学意义(P < 0.05)。电极针尖及椎体骨质内深1 cm位置的温度在消融5 min后所测得的值明显高于椎体后壁及椎体的骨皮质表面,但各测温点的温度均高于“0”时刻各测温点的温度值。椎体骨质内深1 cm位置的温度在消融5 min后4个记录时刻比较差异有统计学意义(P <0.05),温度总体上呈渐升过程。椎体后壁及椎体骨皮质表面的温度在消融5 min后4个记录时刻的温度比较差异无统计学意义(P > 0.05)。结论 在对椎体行RFA时,椎管内流动的脑脊液及椎体骨质内流动的血液会带走部分热量;骨皮质具有一定的隔热作用,对椎体后壁保持完整的椎体转移性肿瘤RFA治疗安全、可靠。

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备注/Memo

备注/Memo:
 (收稿日期:2012-07-10)
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