双源CT血管成像在Willis环区动脉瘤诊断及治疗中的应用

Dual Source CT Angiography in Diagnosis and Treatment for Aneurysms of Willis Circle

目的：探讨双源CT血管成像（DSCTA）在Willis环区动脉瘤的诊断、分型及介入栓塞治疗中的临床应用价值.方法：术前采用DSCTA检查筛选颅内动脉瘤患者26例（33个）.采用Seldinger技术,在DSA引导下行全脑血管造影,了解动脉瘤位置、形态、大小,测量瘤颈及瘤体直径 再根据不同的解剖学形态选用不同的介入栓塞方法治疗.结果：术前DSCAT和DSA检查对颅内动脉瘤的大小、位置、形状显示一致.26例患者共33个动脉瘤均成功栓塞,完全栓塞18个,占54.54% 栓塞程度在95%以上12个,占36.36% 不完全栓塞3个,占9.09%.结论：DSCTA检查和DSA全脑血管检查可提供颅内动脉瘤的位置、形态、大小等影像解剖学资料,为动脉瘤的临床分类和治疗方法的选择提供依据.

Objective：To evaluate the clinical value of dual source CT angiography （DSCTA） in the diagnosis, classification and interventional embolisation treatment for aneurysm of Willis circle. Methods：26 cases with intracranial aneurysms were screened in preoperation by DSCTA. Preoperative cerebral angiography under the guidance of the DSA was used by the Seldinger technique, the analysis and research of the informa- tion could be assisted to comprehend the location, shape, size of aneurysm, the diameter of aneurysm neck and body was measured, then appropriate interventional therapy was selected according to different anatomical pat- terns. Results ：33 intracranial aneurysms in 26 patients were successfully embolized. Complete embolism was achieved in 18 cases （54.54%）, embolismed over 95% in 12（36.36% ）, partial embolism in 3 aneurysms（9. 09% ）. Conclusions：Preoperative examination by DSCTA and DSA can provide the basis for aneurysm treat- ment, reduce blindness and shorten the treatment time.