一、资料和方法44例病人中,男性33例,女性11例,前者平均年龄63岁(44—84),后者平均年龄67岁(58—76)。尸检材料是完整的且包括颅外血管。同时收集了13例在尸检时没有动脉阻塞而在椎基动脉区域有梗塞的材料。动脉检查包括其全长、脑底动脉环形态、脑底动脉的全部分支、狭窄或阻塞的位置、并仔细找寻动脉硬化的溃疡和附壁血栓(Muralthrombi)。动脉狭窄程度,在固定后横切面上根据 Lhermitte 1966年所发表的资料 First, the data and methods 44 cases of patients, 33 males and 11 females, the former average age of 63 years (44-84), the latter average age of 67 years (58-76). Autopsy material is complete and includes extracranial blood vessels. At the same time collected 13 cases of autopsy without artery occlusion in the vertebral artery infarction of the material. Arterial examinations include their full-length, ring morphology of the cerebral artery, all branches of the cerebral artery, stenosis or obstruction and carefully look for atherosclerotic ulcers and mural thrombi. The degree of arterial stenosis, after a fixed cross-section according to Lhermitte 1966 published data