三维影像在颅内动脉瘤栓塞中的应用

Three dimentional imagings in the application of intracranial aneurysm embolization

目的评价3D-CTA,MRA和3D-DSA在动脉瘤致密填塞中的应用价值。方法64例颅内动脉瘤患者(检出72枚动脉瘤),血管内栓塞治疗60枚。研究并比较CTA,MRA和DSA影像特点。结果60枚栓塞的动脉瘤中50枚致密填塞,10枚为大于95%填塞,5枚为大于90%填塞。3D-CTA对动脉瘤测量值比2D-DSA大,3D-DSA比2D-DSA大。结论动脉瘤应用血管内栓塞治疗时,在3D影像指导下可提高动脉瘤的致密填塞率。但是3D影像的测量值要大于2D影像的测量值。

Objective To evaluate the 3-dimention （3D）CTA, MRA and DSA imagings in the application of dense packing for curing aneurysm. Methods 64 patients with intra-cranial aneurysms were treated with clipping or endovascular techniques （including 72 aneurysms with 60 intravascular embolizations）. Their 3D images were studied, the characteristics of CTA MRA and DSA were compared. Results Among 72 aneurysms, 60 were packed with dense packing in 50 patients, 〉 95% packing in 10 cases. The measurement of aneurysm in 3D-CTA showed bigger than that of 2D-DSA; and that of 3D-DSA was bigger than that of 2D- DSAo Conclusion Aneurysms could be obliterated by endovascular technique; dense packing in 3D images would be achieved in most patients, but the 3D images showed aneurysm often larger than those of 2D images. （J Intervent Radiol, 2007, 16： 513-515）