Objective:To use the 3D reconstruction of the machine to test the success of the traditional lateral ventricular occipital approach, and looking for a better Angle of puncture.Method:A total of 102 cases with enlarged lateral ventricle were selected by CT examination of Fujian provincial hospital.Based on the original data of the 3D spiral CT of the skull, the 3D virtual model of skull and lateral ventricle was established by using computer 3D reconstruction technique as the definition of the lateral ventricle 6.0 cm above the outer tuberosity of the occipital, 3.5 cm by the middle line was the puncture point, and the puncture direction points to the same side of the eyebrows, the root of the nose, the midpoint of the orbit, the lateral canthus of the orbit, and the depth of puncture in the direction of the eyebrow were measured.Result:The 3D reconstruction of the machine to test the success of the traditional lateral ventricular occipital approach, the statistical results showed that the success rate of the puncture direction points to eyebrows was higher than that points to the middle of the orbit, which was statistically significant (P<0.05), the average puncture depth was (42.79±2.80) mm.Conclusion:Computer-aided simulation of lateral ventricle occipital angle puncture confirmed the success rate of traditional puncture method, and found that the success rate of puncture direction for eyebrow was significantly higher than that of midpoint orbital margin, which could provide reference for clinical practice.%目的:利用计算机三维重建技术验证传统侧脑室枕角穿刺方法的成功率, 并寻找更优的穿刺方向.方法:选取福建省立医院CT检查报告为侧脑室增大的成年患者102例, 以其头颅三维螺旋CT的原始资料, 利用计算机三维重建技术建立颅骨-侧脑室三维虚拟模型, 进行侧脑室大小界定, 取枕外隆凸上方6.0 cm, 中线旁开3.5 cm为穿刺点, 穿刺方向分别指向同侧眉心、鼻根部、眶上缘中点、眼眶外眦, 并测量眉心方向上的穿刺深度.结果:利用计算机三维重建技术验证传统侧脑室枕角穿刺方法的成功率, 发现穿刺方向朝向眉心成功率高于眼眶中点上缘, 比较差异有统计学意义 (P<0.05), 平均穿刺深度为 (42.79±2.80) mm.结论:采用计算机辅助模拟侧脑室枕角穿刺, 证实了传统穿刺方法的成功率, 并发现穿刺方向为眉心的成功率明显高于眼眶中点上缘, 可为临床医师实际操作提供参考.
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