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作者对1978～86年间所见7例经CT、脑血管造影或尸检证实为椎基动脉(VB)大梭形动脉瘤所引起的脑干梗塞的患者进行研究,详细复习了他们的病历,以阐明此类卒中患者的临床、放射学和病理学特征。结果:CT 检查7例均见越过桥—小脑角的血管明显扩张、弯曲,有时凹入桥脑,注射对比造影剂后,此种表现更清晰;有2例还发现颈动脉系统血管类似扩张。脑血管造影:仅做6例,均显示基底动脉扩张、弯曲和延长,1例见基底动脉近端狭窄,2例见有与基底动脉血栓形成一致的血管腔内充盈
The authors studied seven patients with cerebrum infarction caused by vertebrobasilar (VB) large fusiform aneurysm confirmed by CT, cerebrovascular angiography, or autopsy between 1978 and 1986 and reviewed their medical records in detail To clarify the clinical, radiological and pathological features of such stroke patients. Results: In all 7 cases of CT examination, the blood vessels of the bridge-cerebellum were obviously dilated, curved, and sometimes concave into the pons. This was clearly demonstrated after injection of contrast agent. In 2 cases, the vessels of the carotid artery were also found to expand similarly. Cerebral angiography: only 6 cases were done, showing basilar artery dilatation, flexion and extension, 1 case of proximal basilar artery stenosis, 2 cases of endovascular filling consistent with basilar artery thrombosis