弥散张量成像在脑出血患者运动功能转归预测中的作用

Role of diffusion tensor imaging in predicting the outcome of motor function in patients with intrac erebral hemorrhage

卒中是中国居民死亡的首位原因。脑出血占所有卒中的10％～20％，神经功能损伤程度往往较缺血性卒中更严重。皮质脊髓束受损是卒中后运动功能缺损的重要机制。弥散张量成像（diffusion tensor imaging，DTI）是目前唯一可无创性检测脑白质纤维束的功能磁共振成像技术，可客观评估纤维束受损程度，预测患者的运动功能转归。文章对DTI在脑出血患者运动功能转归预测中的作用进行了综述。

Stroke is the leading cause of death in Chinese Residents. Intracerebral hemorrhage accounts for 10-20% of all stroke, and the degree of nerve function damage is often more severe than that of ischemic stroke. The corticospinal tract injury is an important mechanism for motor function defect after stroke. Diffusion tensor imaging （DTI） is the only functional magnetic resonance imaging to noninvasively detect white matter tracts, which can objectively evaluate the degree of fiber bundle damage. This article reviews the rote of DTI in predicting the outcome of motor function in patients with intracerebral hemorrhage.