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目的:探讨计算机三维重建技术在肝门部胆管癌手术中的临床应用价值。方法:回顾性分析2017年1月1日至2019年7月31日中国科学技术大学附属第一医院普外科收治的术前行CT三维重建并行手术治疗的肝门部胆管癌患者临床资料。将通过术前三维重建确定的肝门部胆管癌分型、血管侵犯以及手术可切除性与术中实际情况进行对比分析，评价三维重建技术对肝门部胆管癌分型、血管侵犯、肝门部胆管癌脉管系统总诊断的准确率。结果:符合纳入标准的患者共65例，其中男性35例，女性30例，年龄(60.35±10.70)岁。术后65例患者肝门部胆管癌Bismuth分型为I型7例、II型4例、III型14例、IV型40例。术前三维重建对于诊断肝门部胆管癌分型、门静脉侵犯、肝动脉侵犯以及肝门部胆管癌脉管系统总诊断的准确率分别为90.7%(59/65)、90.7%(59/65)、86.1%(56/65)和80.0%(52/65)。结论:计算机三维重建技术能直观准确地显示肝门部占位的形态与空间分布，对术前精确诊断、术中精准手术的实施有重要的临床应用价值。“,”Objective:To study the use of three-dimensional computer reconstruction in diagnosis and treatment of hilar cholangiocarcinoma.Methods:A retrospective analysis of clinical data was conducted on patients with hilar cholangiocarcinoma admitted to the Department of General Surgery, the First Affiliated Hospital of the University of Science and Technology of China from January 1, 2017 to July 31, 2019. The classification of hilar cholangiocarcinoma, vascular invasion and surgical resectability were determined by preoperative three-dimensional reconstruction. These data were then compared with the findings obtained during operations, by comparing with the three-dimensional reconstruction technology findings in classification of hilar cholangiocarcinoma, vascular invasion, and hilar extent of biliary and vasculature involvement.Results:Of 65 patients included in this study, there were 35 males and 30 females, with an age of (60.35±10.70) years. After operation, these 65 patients were classified into type I (n n=7), type II (n n=4), type III (n n=14), and type IV (n n=40) using the Bismuth classification. The accuracy rates of preoperative three-dimensional reconstruction for hilar cholangiocarcinoma classification, portal vein invasion, hepatic artery invasion, and diagnosis of hilar cholangiocarcinoma vasculature involvement were 90.7% (59/65), 90.7% (59/65), 86.1% (56/65) and 80.0% (52/65) respectively.n Conclusions:The three-dimensional computer reconstruction technology could visually and accurately display the shape and spatial extent of hilar cholangiocarcinoma. It has an important clinical use in accurately diagnosing hilar cholangiocarcinoma preoperatively.