构建基于肝脏CT图像的温控射频消融仿真模型  

Construction of temperature-controlled RFA simulation model based on liver CT images

作　　者：黄维[1] 罗洪艳[1] 潘进洪[2] 范箫翔 

机构地区：[1]重庆大学生物工程学院,重庆400044 [2]第三军医大学西南医院泌尿外科,重庆400038 [3]重庆理工大学药学与生物工程学院,重庆400054

出　　处：《中国介入影像与治疗学》2014年第8期532-536,共5页Chinese Journal of Interventional Imaging and Therapy

基　　金：国家自然科学基金(30900323)

摘　　要：目的基于肝脏CT图像构建温控射频消融仿真模型。方法基于人体腹腔CT扫描数据构建符合真实形态的肝脏几何模型;在此基础上,采用Comsol软件,基于反馈温度的比例积分控制方法调节电极针施加电压,构建温控射频消融仿真模型。结果所构建的温控射频消融仿真模型能较好地模拟温控消融模式,其组织最高温度、施加电压均与临床应用相符。结论本研究成功构建了基于肝脏CT图像的温控射频消融仿真模型。Objective To construct a temperature-controlled radio frequency ablation （RFA） simulation model based on CT images of liver. Methods A lifelike geometric liver model was developed based on human abdominal CT data. Then the simulation of temperature-controlled mode of RFA was carried out based on that geometric model in Comsol software, which adjusted its applied voltage of electrode by feedback temperature using the proportional-integral controlled algorithm. Results The model could successfully simulate the temperature-controlled mode of RFA. The obtained maximum tissue temperature and applied voltage were compatible with clinical situations. Conclusion The temperature-controlled RFA simulation model has been successfully constructed from CT images of human liver.

关 键 词：射频消融 计算机模拟 体层摄影术 X线计算机 温控模型 

分 类 号：R735.7[医药卫生—肿瘤]