为了对脑血管网自然和人工吻合的意义和效能作详细研究,近3年来发展了与脑循环相适应的计算机模型.作者特有兴趣的是主要脑动脉的各种闭塞,如脑底动脉环的交通动脉闭塞性病变、小血管病变、和人工颅内外动脉吻合等情况下局部脑血流量的改变.该计算模型模拟了正常脑血管网的结构,及以下供应脑底动脉环血管阻塞后的情况:1:双侧颈内动脉闭塞合并或不合并单侧椎动脉闭塞;2:单侧颈 In order to study in detail the significance and efficacy of the natural and artificial anastomosis of cerebrovascular network, a computer model adapted to the cerebral circulation has been developed over the past 3 years. Authors of particular interest are occlusions of the major cerebral arteries, Traffic arterial occlusive disease, small vessel disease, and artificial intracranial and external arterial anastomosis, etc. This computational model simulates the structure of the normal cerebrovascular network and the following supply of cerebral artery occlusion : 1: bilateral internal carotid artery occlusion with or without unilateral vertebral artery occlusion; 2: unilateral neck