三维DSA在颅内动脉瘤诊断中的作用

Role of 3-dimensional DSA in the diagnosis of intracranial aneurysms

目的 :探讨数字减影 (DSA)三维重建 (3D)在颅内动脉瘤影像诊断中的应用价值。方法 :2 0 0 2年 4月至 2 0 0 4年 1月 ,对 112例自发性蛛网膜下腔出血 (SAH)患者行二维 (2D)和三维 (3D)血管造影检查 ,对比分析 2D和 3D的影像学结果。结果 :112例患者经 2D和 3D检查 ,确定 72例共 74个颅内动脉瘤 ,2D检查假阴性 3例 ,假阳性 2例 ,8例瘤颈显露不清 ,4例经3D证实为宽颈动脉瘤。结论 :3D提高了颅内动脉瘤诊断的准确率 ,对动脉瘤的进一步治疗有重要的辅助作用。

Objective: To explore the role of 3-dimensional DSA in the diagnosis of intracranial aneurysms. Methods: Two-dimensional(2-D) and three-dimensional (3-D) angiography was performed on 112 cases of spontaneous subarachnoid hemorrhage (SAH) from April, 2002 to January, 2004, and the outcome of angiography was analyzed. Results: Following 2-D and 3-D angiography of 112 patients, the results were as follows: 72 cases were confirmed of the disease, with a total of 74 aneurysms; with 3-D DSA,3 cases in 2-D angiography proved to be false negative and two cases were false positive; 8 cases of aneurysms from 2-D images could not clearly display the necks; 4 cases of sac aneurysms were determined to be wide-necked aneurysms. Conclusion: 3-dimentional DSA improved the diagnostic rate and was of great importance for further treatment of intracranial aneurysms.