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目的 观察大脑动脉环后交通动脉的形态变异。 方法 取 5 0例经福尔马林处理的台湾地区成年男性大脑 ,用光学摄像系统摄取后交通动脉影像 ,冲映成照片后 ,再经扫描仪存入计算机并放大至 2 0倍 ,用打印机映出影像后测量并统计外径值。 结果 左侧后交通动脉近颈内动脉端外径为 1 72± 0 77(0 7～ 4 3)mm ,右侧则为 1 6 9± 0 78(0 8～ 3 3)mm。左侧后交通动脉近大脑后动脉端外径为 1 5 9± 0 5 8(0 8～ 3 0 )mm ,右侧则为 1 5 9±0 6 8(0 5～ 3 2 )mm。 结论 台湾地区测量值与大陆地区测量值有差异 ,是由于两地采用的测量方法不同造成的
Objective To observe the morphological changes of the communicating artery after the cerebral artery rings. Methods Fifty adult male brains from Taiwan who were treated with Formalin were taken and the images of the posterior communicating artery were taken by optical imaging system. After the images were taken into a photo, they were stored in a computer and magnified to 20 times by a scanner. After mapping the image, measure and calculate the OD value. Results The diameter of the proximal internal carotid artery of the left posterior communicating artery was 1 72 ± 0 77 (0 7 ~ 4 3) mm, while the right one was 169 ± 0 78 (0 8 ~ 3 3) mm. The diameter of the posterior cerebral artery in the left posterior communicating artery was 1.59 ± 0.58 (0 8 ~ 30) mm and the right was 159 ± 0 6 8 (0 5 ~ 3 2) mm. Conclusion The differences between the measured values in Taiwan and the measured values in the mainland are due to the different measurement methods adopted in both places