北京生物醫(yī)學工程

肝臟的三維可視化及切除術模擬研究

ThreeDimensional Visualization and Simulation of Liver Resection

作者：黃展鵬易法令鮑蘇蘇

單位：廣東藥學院醫(yī)藥信息工程學院(廣州510006)

分類號：

出版年·卷·期（頁碼）：2010·29·4（336-339）

摘要：

從CT斷層數據提取出肝體、動脈、靜脈、門靜脈和腫瘤，采用輪廓拼接技術重建出肝臟和內部管道，然后利用交互式切割工具對其進行模擬手術切割，開發(fā)出一個基于PC的肝臟可視化與模擬切割系統(tǒng)。系統(tǒng)以Visual C++為開發(fā)工具，結合可視化類庫VTK，用戶可通過圖形界面調節(jié)不透明值并觀察肝臟及其內部管道的空間結構，同時實現交互式調節(jié)切割平面以模擬肝臟腫瘤切除術。切割面的動態(tài)調節(jié)與模擬肝切除術的效果圖表明針對具體病人的CT數據進行重建可以直觀地展示其三維結構，通過切割的模擬有利于術前規(guī)劃和選擇恰當的手術方位以減少對肝實質和血管的傷害。

The contours of the liver, intrahepatic arteries, veins, the portal vein and tumor were extracted from patient’s CT data, and the 3D surfaces were reconstructed by contours tiling. Then a user graphical interface was designed to simulate the surgery. A 3D visualization and virtual cutting system of liver was developed based on personal computer. The system was designed based on VTK and realized by Microsoft Visual C++60 A user graphical interface was provided to observe the spatial relationship among the tumor and blood vessels by adjusting the transparency of the object. By interactively modifying the cutting plane, the process of performing an operation for the tumor was simulated. Simulation of the cutplane adjusted and liver resection show that the system could present with vivid profile of the liver and internal vessels in full views based on the patient CT data, and the simulation of surgery cutting is useful for preoperative planning, which could reduce the damage to the liver and vessels by appropriate planning.

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