《急诊每日一题》单纯动眼神经麻痹要高度警惕脑血管瘤2019年12月18日

Question 问题:
Isolated oculomotor nerve palsy has a high specificity for associated aneurysms. Aneurysms of the posterior communicating artery, as one example, have a 50% rupture rate. If a clinical diagnosis of IOP is made, what imaging is obtained?
单纯动眼神经麻痹与动脉瘤密切相关,如50%后交通动脉瘤会出现破裂。如果临床提示为动眼神经麻痹,应该做什么影像学检查?
Answer 答案:
Recent studies suggest that CTA is more sensitive than MRI. An unenhanced CT is not sensitive enough to see most aneurysms. Therefore, CTA is a reasonable first step in imaging for a patient with IOP.
最近研究提示脑CT血管造影(CTA)要比核磁共振(MRI)敏感。CT平扫对许多脑动脉瘤不敏感。因此脑CTA对于单纯动眼神经麻痹患者应该是首选的。
参考文献:
JEM, epub, 11/27/19
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