急性脑梗死的病灶是由中心坏死区及其周围的缺血半暗带组成 ,急性期细胞坏死与细胞凋亡并存 ,后者主要出现在缺血半暗带内。缺血半暗带因仍有侧支循环存在 ,其通过治疗干预有可能被挽救 ,即潜在可逆的缺血脑组织 ,在时间和空间上呈可逆逐渐向不可逆损伤动态发展 ,故保护挽救半 Acute cerebral infarction lesions by the center of the necrotic area and the surrounding ischemic penumbra, acute necrosis and apoptosis co-exist, the latter mainly in the ischemic penumbra. Ischemic penumbra is still due to collateral circulation, which may be rescued by treatment intervention, that is potentially reversible ischemic brain, in time and space was reversible to the gradual development of irreversible damage, so the protection of saving half