摘要
目的借助现代神经影像方法探讨双侧大脑前动脉(anterior cerebral artery,ACA)分布区梗死可能的机制。方法回顾性分析4例急性双侧ACA分布区脑梗死患者的临床及头MRI、MRA或血管造影等影像学资料。结果 4例患者均有脑血管病危险因素,包括高血压、糖尿病、高脂血症、吸烟等。动脉硬化及血管变异是双侧ACA分布区脑梗死发病的重要病因。发病机制包括颈内动脉到ACA的栓塞、动脉到动脉的栓塞等。血管变异包括双侧ACA共干、一侧ACA发育异常或闭塞等。结论脑血管影像分析有助于双侧ACA分布区脑梗死病因及发病机制的探讨。
Objective To study the possible mechanisms of bilateral anterior cerebral artery （ACA） territory infarction based on modern neuroimaging findings. Methods Four patients with bilateral ACA territory infarction were retrospectively reviewed, regarding their clinical and neuroimaging （MRI, MRA and angiography） data. Possible pathogenesis of stroke was analyzed. Results All the 4 patients had risk factors for cerebrovascular disease, including hypertension, diabetes mellitus, hypercholesterolemia and cigarette smoking. Atherosclerosis and anatomic variants of arteries were main etiologies of stroke. The pathogenesis of stroke included： 1. internal carotid artery （ICA） to ACA embolism; 2. artery to artery embolism. Anatomic variants of ACA included： 1. hypoplasia or absence of A1 segment of unilateral ACA; 2. occlusions or hypoplasia of unilateral ACA. Conclusions Neuroimaging analyses are very helpful in investigating the etiologies and pathogenesis of bilateral ACA territory infarction.
出处
《中国神经免疫学和神经病学杂志》
CAS
2011年第3期182-185,共4页
Chinese Journal of Neuroimmunology and Neurology
关键词
双侧大脑前动脉分布区
脑梗死
磁共振成像
机制
bilateral anterior cerebral artery territory
cerebral infarction
neuroimaging
pathogenesis
