目的 探讨数字化微创技术在肝胆管结石诊治中的临床应用价值.方法 选择4例肝胆管结石患者术前64层CT数据,采用三维可视化软件-腹部医学图像处理系统(MI-3DVS)进行患者肝脏、肝内动静脉、门静脉和胆道及胆管结石的个体化三维重建,进行结石及病变胆管的精确定位诊断.根据三维重建结果进行不同手术方案的仿真手术演练,确定肝脏切除范围及胆肠吻合方式,指导术中微创操作.结果 MI-3DVS 三维重建的4例患者肝脏、肝内血管系统及胆道系统等解剖结构清晰,尤其结石的大小及在胆管内的分布、病变胆管的部位和程度以及胆管和周围血管的空间解剖关系清晰明了.4例患者在仿真手术指导下,通过部分肝切除取净了结石、最大程度保护残肝体积,实现了肝胆管结石的微创化手术治疗.结论 三维重建及可视化仿真手术,可实现肝胆管结石的数字化微创治疗,将成为肝胆外科一项新的诊疗技术.%Objective To assess the clinical value of digitalized minimally invasive technique in the treatment of the hepatolithiasis. Methods The 64-slice spiral CT data were acquired from 4 hepatolithiasis patients for three-dimensional reconstruction and simulation operation using abdominal medical image-3D visualization system (MI-3DVS). Three-dimensional reconstruction was performed for the liver, hepatic arteries, hepatic veins, portal veins, intrahepatic bile ducts and calculi. Based on the size and position of the calculi and the distribution of the dilated or stenotic biliary ducts, several simulation operations such as partial hepatectomy and hepaticojejunstomy were performed. With guidance by the findings in the simulation operation, the actual minimally invasive operation was performed. Results The three-dimensional models of the liver, hepatic arteries, hepatic veins, portal veins, intrahepatic bile ducts and calculi were reconstructed successfully, which clearly visualized the site and the number of calculi and the condition of the involved intrahepatic' bile ducts. Guided by the three-dimensional models and the simulation operations, partial hepatectomy and hepaticojejunstomy were performed and the calculi were removed completely in all the 4 cases with maximum preservation of the residual liver volume. Conclusion Three-dimensional reconstruction and simulation operation allows digital minimally invasive treatment of hepatolithiasis, which can be a new approach to hepatobiliary surgery.
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