增强现实导航辅助CT引导下穿刺犬肺结节模型  

Augmented reality navigation system for assisting CT-guided puncture of pulmonary nodules in dog models

作　　者：周涛 孙楠楠 范小波 王秀 谢政怡 孙玉清 杨晨晓 徐春明 张首誉 马壮飞 张敏 贾守强 ZHOU Tao;SUN Nannan;FAN Xiaobo;WANG X iu;XIE Zhengyi;SUN Yuqing;YANG Chenxiao;XU Chunming;ZHANG Shouyu;MA Zhuangfei;ZHANG Min;JIA Shouqiang(Department of Radiology,Jinan People’s Hospital,Jinan 271199,China;Department of Nephrology,Jinan People’s Hospital,Jinan 271199,China;Shandong Lonwin Medical Systems Co.,Ltd.,Jinan 251403,China;Canon Medical System,Beijing 100016,China)

机构地区：[1]济南市人民医院影像科,山东济南271199 [2]济南市人民医院肾内科,山东济南271199 [3]山东朗润医疗系统有限公司,山东济南251403 [4]佳能医疗系统(中国)有限公司,北京100016

出　　处：《中国介入影像与治疗学》2024年第1期38-41,共4页Chinese Journal of Interventional Imaging and Therapy

基　　金：2021年度山东省自然科学基金面上项目(ZR2021MH272)。

摘　　要：目的观察增强现实(AR)导航用于CT引导下穿刺犬肺结节模型的价值。方法选取5只健康犬,各于肺部植入4个靶环,建立犬肺结节模型。按照交叉设计,分别于造模成功后2周及4周于AR导航下或无导航行CT引导下穿刺,以AR导航穿刺为AR组、无导航穿刺为常规组。比较2组穿刺时长、CT扫描次数、穿刺中调整进针路径次数及三维重建所示针尖至病灶中心点的误差距离。结果AR组穿刺用时(13.62±5.11)min、常规组为(20.16±4.76)min;AR组CT扫描次数、调针次数及误差距离结果分别为(2.40±0.50)次、(2.75±0.44)次及(2.94±1.92)mm,常规组依次为(3.10±0.64)次、(3.70±0.57)次及(4.90±3.38)mm。引入AR导航可缩短穿刺用时、减少CT扫描和调针次数、降低穿刺误差(P均<0.05),而不同穿刺顺序及实验犬只对穿刺结果无影响(P均>0.05)。结论AR导航系统用于CT引导下穿刺犬肺结节模型有助于提高穿刺准确性及穿刺效率。Objective To observe the value of augmented reality(AR)navigation system for assisting CT-guided puncture of pulmonary nodules in dog models.Methods Five healthy dogs were selected,and 4 target lung rings were implanted in each dog to build pulmonary nodule models.Deferring to crossover design,CT-guided punctures were performed with or without AR navigation 2 and 4 weeks after successful modeling,respectively,while punctures with AR navigation were regarded as AR group and the others as conventional group,respectively.The time duration of puncturing,the times of CT scanning,of needle adjustment,and the deviation distance between needle pinpoint to the center of pulmonary nodule shown on three-dimensional reconstruction were compared between groups.Results The duration time of puncture in AR group and conventional group was(13.62±5.11)min and(20.16±4.76)min,respectively.In AR group,the times of CT scanning,of needle adjustment,and the deviation distance was 2.40±0.50,2.75±0.44 and(2.94±1.92)mm,respectively,while in conventional group was 3.10±0.64,3.70±0.57 and(4.90±3.38)mm,respectively.The introduction of AR navigation was helpful to shortening the duration of puncture,reducing times of CT scanning and needle adjustment,also decreasing positioning error of needle pinpoint(all P<0.05).In contrast,the variance of puncture sequences and dogs had no obvious effect on the results(both P>0.05).Conclusion AR navigation system could improve accuracy and efficiency in CT-guided puncture of pulmonary nodules in dog models.

关 键 词：增强现实 多发肺结节 体层摄影术 X线计算机 穿刺术 犬 

分 类 号：R-33[医药卫生] R604R814.42