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应用三维ＣＴ血管造影（３Ｄ－ＣＴＡ）对４例脑膜瘤（上矢状窦旁、大脑镰、鞍结节、三叉神经半月节各１例）进行了检查，并与ＭＲＩ对照观察。结果显示：４例脑膜瘤在３Ｄ－ＣＴＡ图象上立体结构鲜明，与周围血管、骨结构立体解剖关系显示清楚；ＭＲＩ仅显示肿瘤的二维结构，需结合数字减影血管造影（ＤＳＡ）才能判定肿瘤相关血管的来源和走行。结论：３Ｄ－ＣＴＡ能清楚显示脑膜瘤的立体结构和与周围血管、骨结构的立体解剖关系，通过骨切削技术可模拟颅骨开瓣和手术入路。
Four cases of meningioma (1 case of superior sagittal sinus, falx nodules, saddle nodules and trigeminal ganglion) were examined by 3D-CTA and observed with MRI. The results showed that the three-dimensional structure of meningioma was distinct in 3D-CTA images and the three-dimensional anatomical relationship with the surrounding blood vessels and bone structures was clear. MRI showed only the two-dimensional structure of the tumor, which needed to be combined with digital subtraction angiography Determine the source of tumor-related blood vessels and walking. Conclusion: 3D-CTA can clearly show the three-dimensional structure of meningioma and the three-dimensional anatomic relationship with the surrounding blood vessels and bone structure. It can simulate the open skull flap and surgical approach through the bone cutting technique.