者主张将脑损伤分为局限性和弥漫性损伤两大类更为实用［3，8］。
　　总之DAI是常见弥漫性脑损伤，可分为轻、中、重三型，脑震荡和原发脑干损伤被包含其中，且常常与脑皮质挫裂伤伴发，对DAI发病机制的认识，为脑损伤的的诊断和治疗提供了依据，且有望改变现有原发脑损伤的分类方法。
作者单位：姜曙（610041　成都，华西医科大学第一附属医院神经外科）
鞠延（610041　成都，华西医科大学第一附属医院神经外科）
贺民（610041　成都，华西医科大学第一附属医院神经外科）
毛伯镛（610041　成都，华西医科大学第一附属医院神经外科）
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