目的：研究联合应用三维CT血管造影(CTA)及三维数字减影血管造影(DSA)在颅内动脉瘤的诊断及治疗中的临床应用价值。方法：将27例高度怀疑颅内动脉瘤患者的三维CTA及三维DSA检查结果与外科手术治疗的最终结果进行对比，评价三维CTA及三维DSA在动脉瘤的检出率、三维形态与空间关系的显示能力。探讨联合应用三维CTA及三维DSA在颅内动脉瘤的诊断及治疗价值。结果：在27例疑似患者中有25例经外科手术治疗证实为动脉瘤，发现动脉瘤28个。三维CTA及三维DSA动脉瘤检出率上差异无统计学意义(x2=0.037，P＞0.05)。三维CTA对检出的动脉瘤可准确清楚地显示其三维形态及与周围颅骨的空间关系,三维DSA对颅内动脉瘤和动脉瘤的瘤颈、瘤体及动脉瘤与载瘤动脉关系显示清楚、准确。结论：在颅内动脉瘤影像学诊断上，三维CTA和三维DSA各有优势，两种检查方法互补可提高动脉瘤的检出率。联合应用三维CTA及三维DSA可为手术设计提供参考依据。%Objective: To research three-dimensional computed tomography angiography (3D-CTA) combined three-dimensional digital subtraction angiography (3D-DSA) in the diagnosis of intracranial aneurysms. Methods: 3D-CTA and 3D-DSA were performed in 27 cases with Highly suspected in patients with intracranial aneurysms, And compared with the final outcome of surgery. To evaluate 3D-CTA and 3D-DSA in the detection rate of aneurysms, three-dimensional shape and spatial relations ability to display. Research 3D-CTA combined 3D-DSA in the diagnosis of intracranial aneurysms. Results: Twenty-seven cases of suspected patients, 25 cases of surgical treatment of confirmed aneurysms, 28 aneurysms found. 3D-CTA and 3D-DSA rate of aneurysms was no significant difference. 3D-CTA of the aneurysm can be accurately detected clearly shows its three-dimensional shape and spatial relationship with the surrounding skull, 3D-DSA for aneurysm neck, the tumor and the aneurysm and parent artery relationship shows clear and accurate. Conclusion: Imaging of intracranial aneurysm diagnosis, 3D-CTA and 3D-DSA have their respective advantages, combined two methods can improve the detection rate of aneurysms. 3D-CTA combined 3D-DSA have support of design for operation.
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