脑弥漫性轴索损伤(DAI)是一种原发性闭合性脑损伤,常引起脑功能障碍、严重者致残甚至死亡。其临床表现往往较重且缺乏特异性,尤其是在早期,因此及时、准确地诊断DAI越来越为临床所重视。但目前常规的影像学检查未能及时发现或发现了却低估了DAI,相信随着医学的进步,医学影像检查新技术、新方法的飞速发展,对DAI的影像学认识有了很大进步。 Brain diffuse axonal injury (DAI) is a primary closed brain injury, often cause brain dysfunction, severe disability or death. Its clinical manifestations are often heavy and lack of specificity, especially in the early stage, so timely and accurate diagnosis of DAI is more and more clinically valued. However, the routine radiological examination fails to discover or discover in time but underestimates the DAI. It is believed that with the progress of medical science and the rapid development of new medical imaging examination methods and new methods, there has been a great improvement in the imaging knowledge of DAI.