目的 探讨 3D⁃Slicer 软件在桥小脑角区肿瘤切除中的术前应用，为精准手术提供较好的辅 助手段。方法 收集 2018⁃2019 年郑州大学第二附属医院神经外科 20 例桥小脑角区肿瘤手术患者，术前 应用 3D⁃Slicer 软件重建静脉窦、颅骨及皮肤等设计皮肤切口及骨瓣。结果 根据三维重建结果设计手术 入路均成功以最佳位置找到肿瘤，并成功保护静脉窦及脑组织。20 例手术均顺利完成，3D 重建图像与术 中实际所见基本一致。结论 3D⁃Slicer 软件可为桥小脑角区肿瘤切除手术提供客观、准确定位，帮助理解 血管神经位置，避免手术路径偏航，提高手术成功率。

Objective To explore the preoperative application of 3D ⁃ SLicer software in the resection of cerebellopontine Angle tumor，so as to provide a better auxiliary means for precise surgery. Methods From 2018 to 2019，20 patients with pontine Angle tumors were collected from the Neurosurgery Department of the Second Affiliated Hospital of Zhengzhou University. Before surgery，3D⁃SLicer software was used to reconstruct the sinus， skull and skin，and design skin incisions and bone flaps. Results According to the results of 3 d reconstruction， all the surgical approaches were successfully designed to find the tumor in the best position and to protect the venous sinus and brain tissue. All the 20 cases were successfully completed，and the 3D reconstructed images were basically consistent with the actual intraoperative findings. Conclusions 3D⁃SLicer software can provide objective and accurate positioning for the resection of tumors in the cerebellopontal Angle area，help understand the location of blood vessels and nerves，avoid the yaw of the surgical path，and improve the success rate of the operation.