基于颅脑CTA 3D打印技术在颅内动脉瘤手术治疗中的应用

摘要

Objective To investigate the application of three-dimensional (3D) printing technology based on CT angiography (CTA) in the treatment of intracranial aneurysm. Methods DICOM data of 4 patients with intracranial aneurysm were obtained from CTA scan. The skull and blood vessels data were extracted and reconstructed with different segmentation method, and the assembly and integration were achieved in the same coordinate system. The entity models were produced to guide surgery through optimized 3D printing technology. Results The 3D virtual models were reconstructed and the entity anatomical models were produced in 4 patients, which aided in making the surgical plan before the operation and guiding surgical positioning and implementation in the operation. The operation of aneurysm clipping was successful. Conclusion The entity anatomical model obtained from 3D printing technology based on the CTA can assist aneurysm location and reduce intraoperative injury and postoperative complications.%目的：探讨基于颅脑CTA的3D打印技术在颅内动脉瘤手术中的应用。方法利用4例颅内动脉瘤病人颅脑CTA扫描所得的DICOM数据，针对颅骨、血管采用不同的分割方法进行数据信息提取和重建，并在同一坐标系下实现装配和融合，优化处理后经3D打印技术进行实体化，用以辅助病人手术治疗。结果4例病人均重建出三维复合虚拟模型并制作实体解剖模型，应用于术前预案的制定及术时辅助手术定位与实施，手术均获得成功。结论基于颅脑CTA的3D打印技术获得的实体解剖模型制作，能够起到辅助动脉瘤定位，减少术中损伤和降低术后并发症的作用。