磁共振弥散张量成像技术(diffusion tensor imaging,DTI)通过反映水分子在不同组织中弥散运动各向异性的差异实现观察人体解剖结构的完整性,也可以通过弥散张量纤维束示踪成像技术(diffusion tensor tractography,DTT)显示白质纤维的走行~([1])。目前DTI在颅脑疾病中应用较多,在早期诊断脑梗塞、判断多发性硬化症分期、判断肿 Diffusion tensor imaging (DTI) can observe the anatomy of human anatomy through the difference of the anisotropy of diffusive motion of water molecules in different tissues, and can also be detected by diffusion tensor tractography diffusion tensor tractography (DTT) shows the movement of white matter fibers ~ ([1]). At present, DTI is widely used in craniocerebral diseases, early diagnosis of cerebral infarction, to determine the stage of multiple sclerosis, to determine the swollen