基于三维CT血管成像的虚拟现实技术在脑血管疾病治疗中的应用

Application of virtual reality technique based on three-dimensional CT angiography in treatment of cerebrovascular diseases

目的探讨基于三维CT血管成像(3D-CTA)的虚拟现实技术在脑血管疾病手术中的应用价值。方法对21例脑血管疾病患者行3D-CTA检查,利用虚拟现实技术将图像模拟成手术入路,并在此模拟入路的指导下进行手术,将术中实际情况与模拟图像进行比较。结果 21例手术均按术前模拟方案实施并顺利完成,未出现严重的手术并发症。手术中所见的解剖关系与术前对虚拟现实状态的观察高度一致。结论利用基于3D-CTA的虚拟现实技术将脑血管图像模拟成手术入路,能清晰显示病灶的大小、形态和位置,并能反映病灶的供应动脉和空间关系,为手术提供指导。

Objective To investigate the value of virtual reality based on three-dimensional CT angiography（3D-CTA） in treatment of cerebrovascular diseases.Methods Twenty-one patients with cerebrovascular diseases were examined with 3D-CTA scanning.Operative approaches were simulated by virtual reality technique,operations were performed under the guidance of simulative approaches,and comparisons were made between surgical findings and simulative images.ResultsOperations were successfully performed under the guidance of simulative approaches in all the 21 patients,and no severe complications occurred.The surgical findings were highly consistent with preoperative rehearsal.Conclusion Virtual reality based on 3D-CTA in cerebrovascular diseases can well simulate operative approaches,clearly illustrate the size,shape and position of the lesion,and reflect the supply arteries and spatial relationship,which can guide the operation.