摘要目的:对比分析计算机辅助手术系统三维成像与二维影像在小儿肝母细胞瘤术前手术规划方案中的应用效果。方法:2016年1月到2019年10月在青岛大学附属医院行肝母细胞瘤手术的25例患儿，每个患儿术前均由术者团队先通过观察二维CT影像制定手术切除方案。再对同一患儿行计算机辅助手术系统三维成像，进行深度分析及对手术规划方案进行重新修订。结果:所有患儿均按照三维辅助手术规划方式成功切除肿瘤，达到R 0切除，所有患儿随访均获得良好预后。10例患儿因三维重建图像评估后发现肿瘤与血管三维关系、血管变异或残肝体积与原手术方案之间的差异最终修改了手术方案，占原手术方案的40%。 结论:计算机辅助手术系统三维成像对小儿肝母细胞瘤术前手术规划效果优于二维影像。

abstractsObjective:To compare the application of preoperative planning of pediatric hepatoblastoma between three-dimensional and two-dimensional imaging of computer-assisted surgery system.Methods:From Jan 2016 to Oct 2019, surgical resection plans on 25 cases were made by the operator team through the observation of two-dimensional CT images. Then, the team will make a thorough analysis and revise the previous preoperative plan for the children patient according to three-dimensional imaging of the computer-assisted surgery system.Results:All the patients had the tumor successfully removed and achieved R 0 resection based on the preoperative plan assisted by three-dimensional imaging. All the children patients were doing well as found by postoperative short-term follow-up. Among them, preoperative plans were finally revised in 10 cases due to the disparity with the original ones in three-dimensional relationship between tumor and blood vessels, in vascular variation and in the volume of remnant liver after the evaluation of three-dimensional reconstruction images, which account for 40% variation of the original operation scheme. Conclusions:Three dimensional imaging of computer-assisted surgery system is superior to two-dimensional imaging in preoperative planning of pediatric hepatoblastoma.