摘要
文章利用有限元技术模拟了不同探针数量(3～5根)及位形条件下的前列腺内的温度场分布,据此确定5根探针手术效果较好,调整探针相对输尿管的径向位置也是提高冷冻效率的途径之一;在确定探针数量及位形的基础上,尝试考察了不同尿道复温温度对冷冻效率的影响;结果表明,手术开始时采用温度相对较低的复温液体能有效提高冷冻效率,缩短手术时间。
The finite element method（FEM） is employed to analyze the frozen behavior of the prostate tissue around the three to five probes in different radial locations. The calculation results show that five probes produce more uniform frozen zone, corresponding to the relatively satisfying operation effect. Appropriate probes radial location can also improve the efficiency of cryoablation. Different re- warming temperatures of the urethral catheter are examined based on the five probes and optimized ra- dial location. It is indicated that diverse re-warming temperatures, especially relatively lower tempera- ture at the beginning, can improve the efficiency of cryoablation and shorten the operation time markedly.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第4期395-400,共6页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(20803016)
关键词
低温消融术
尿道复温
有限元分析
温度场
前列腺
cryoablation
urethral re-warming
finite element analysis
temperature field
prostate
