数字化肾结石三维模型的建立及虚拟手术仿真  

Construction of digital three-dimensional models of renal stones and virtual surgery simulation

作　　者：陈远波[1] 李虎林[1] 刘春晓[1] 许凯[1] 林阳彦[1] 鲍苏苏[2] 彭丰平[2] 潘家辉[2] 

机构地区：[1]南方医科大学珠江医院泌尿外科,广东广州510282 [2]华南师范大学计算机学院,广东广州510631

出　　处：《南方医科大学学报》2013年第2期267-270,共4页Journal of Southern Medical University

基　　金：广东省科技计划项目(2009B030801215)

摘　　要：目的建立数字化肾结石三维模型,并虚拟仿真经皮肾镜碎石术(PCNL)。方法采集8例不同类型肾结石患者的CT数据,利用三维重建软件mimics 10.0进行图像分割和三维重建,建立一体化肾结石三维模型。根据肾结石三维模型提供的肾内及肾脏毗邻器官解剖关系,制定出最合理的个体化手术方案,并通过FreeForm Modeling System进行PCNL虚拟手术仿真。结果共建立了8例患者的肾结石三维模型,三维模型直观显示了肾内结石、集合系统、肾内血管及周围毗邻脏器的关系,在三维模型上模拟了PCNL经皮穿刺、扩张及碎石过程,完成了个体化的PCNL虚拟手术仿真。结论数字化肾结石三维模型为手术设计提供了可靠和全面的依据,PCNL虚拟手术仿真对提高碎石率和减少手术并发症有重要指导意义。Objective To construct three-dimensional （3D） models of renal stones and perform percutaneous nephrolithotomy （PCNL） virtual surgery simulation. Methods CT images were obtained from 8 patients with renal stones. Images segmentation and reconstruction were performed using MIMICS 10.0 software to construct the 3D model of the renal stones, which provided the anatomical relationships between the kidney and the adjacent organs. The optimal PCNL virtual surgery simulation for each individual case was performed using FreeForm Modeling System on the basis of the 3D model. Results Eight 3D models of renal stone were constructed. The 3D model of the renal stones represented the interrelationships of the stones, intrarenal vessel, and the collecting system with the adjacent anatomical structures. Individualized PCNL virtual surgery simulations including percutaneous puncture, dilatation and pneumatic lithotripsy were performed successfully in all the 8 3D models. Conclusion Digital 3D model of renal stone provides the reliable and comprehensive imaging information for surgical design, and PCNL virtual surgery simulation has important clinical significance to improve the stone clearance rate and reduce the surgical complications.

关 键 词：数字化 肾结石 三维模型 虚拟手术 

分 类 号：R699[医药卫生—泌尿科学]