三维CT血管造影诊断多发性颅内动脉瘤  

Three-dimensional CT angiography with volume rendering for the dignosis of multiple intracranial aneurysms

作　　者：方兵[1] 王义荣[1] 朱先理[1] 臧国尧[1] 孙伟军[1] 杨树旭[1] 牛涣江[1] 李新伟[1] 张建民[2] 李铁林[1] 

机构地区：[1]浙江大学医学院附属邵逸夫医院神经外科,杭州310016 [2]浙江大学附属第二医院神经外科

出　　处：《中华急诊医学杂志》2007年第4期414-417,共4页Chinese Journal of Emergency Medicine

摘　　要：目的研究CT血管造影（CTA）及容积重建技术（VR）对多发性颅内动脉瘤的临床应用价值。方法采用Siemens Plus 16 Somatom Volume Zoom型容积CT扫描机获得原始图像，采用容积重建成像技术（VR）进行三维重建，并辅助运用多轴面重建（MPR）。结果在1年间，通过3D-CTA诊断多发性动脉瘤10例。容积重建成像CTA清晰显示颅内动脉瘤、载瘤动脉、动脉瘤的形状和大小及其与邻近结构的解剖关系，在部分病例上要优于DSA。结论容积重建成像CTA是一种可靠、无创的快速诊断颅内多发性动脉瘤的方法，为急症手术提供了详实的影像学资料，可帮助制定治疗方案。Objective To evaluate the preciseness of 3D-CTA with volume rendering for the dignosis of multiple intracranial aneurysms. Method The axial source CT images were obtained by using helical CT scanning. By means of volume rendering technique and aided by multiplanar reformation, the reconstruction 3D- CTA imaging was well done. Results In the last year, 10 patients were diagnosed multiple intracranial aneurysms by 3D-CTA and found total 24 aneurysms, including 10 small aneurysms （≤ 5 mm）. Three- dimensional CT angiography with volume rendering clearly demonstrated aneurysm and provided useful information concerning the site, shape, size and the spatial relationship to the surrounding vessels and bone anatomy. Conclusions Three-dimensional CT angiography with volume rendering is a quick, reliable, and relative noninvasive diagnostic tool for multiple intracranial aneurysms. It delineates the detail of aneurysmal morphology, and it can provide useful information for planning microsurgical approaches.

关 键 词：多发性颅内动脉瘤 CTA容积重建成像 造影 诊断 

分 类 号：R686[医药卫生—骨科学]