三维数字减影血管造影对脑动脉瘤的诊断价值
脑动脉瘤,,脑动脉瘤；三维数字减影血管造影；诊断影像,1材料与方法,2结果,3讨论,参考文献:
(新疆医科大学第一附属医院影像中心； 神经外科， 新疆乌鲁木齐830054)摘要: 目的：探讨三维数字减影血管造影(3DDSA)对脑动脉瘤的诊断价值。方法：对91例确诊或疑诊脑动脉瘤患者的2DDSA和3DDSA检查结果进行回顾性对比分析，以脑动脉瘤手术和血管内治疗为参照。结果：91例患者3DDSA共检出64例92个动脉瘤，27例阴性，2DDSA共检出61例79个动脉瘤，30例阴性，2DDSA和3DDSA脑动脉瘤诊断阳性率比较差异无统计学意义(P>0.05)。2DDSA有1例假阳性和4例假阴性，有10例13个动脉瘤未被2DDSA发现(平均1.98mm),偶然发现未破裂动脉瘤占84.6%。3DDSA对于动脉瘤瘤颈的显示及瘤颈和周围重要血管毗邻关系的评价优于2DDSA(P<0.01)。结论：3DDSA对于脑动脉瘤的诊断和治疗具有很大的临床应用价值。
关键词: 脑动脉瘤；三维数字减影血管造影；诊断影像
The value of 2DDSA and 3DDSA in diagnosis of intracranial aneurysms
MA Jun, JIA Wenxiao, BAO Yuhai, et al
(Department of Medical Imaging Center, First Affiliated Hospital, Xinjiang Medical University, Urumqi, 830054, China)
Abstract: Objective: To evaluate the value of 3DDSA in the diagnosis of intracranial aneurysms. Methods: Twodimensional digital subtraction angiography (2DDSA) and threedimensional digital subtraction angiography (3DDSA) were performed and analysed in 91 patients with confirmed or suspected aneurysms. Results: Compared with the surgry and endovascular treatment, ninetytwo aneurysms were found in 64 patients and nothing were found in 27 with 3DDSA. Seventynine aneurysms were found in 61 patients and nothing was found in 30 with 2DDSA. There was no statistically significant difference in ansurysm detection rate between 3DDSA and 2DDSA (P>0.05). But there were one falsepositive and four falsenegative detection of aneurysms in 2DDSA. 2DDSA failed to dectect thirteen aneurysms (average dimatar:1.98 mm, incidental unruptured aneurysms:84.6%). For visualization of aneurysms neck and relationship to neighboring arteries, 3DDSA images were significantly superior to those of 2DDSA (P<0.01). Conclusions: More accurate diagnosis and secure treatment of intracranial aneurysm can be reached by 3DDSA. It is siginficantly valuable in clinical practise. ......
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