概述随着 CT、MR 新技术的发展,神经影像学已不只是显示单纯的解剖结构,而且能够提供生理、生化等功能方面的信息。广义的功能磁共振成像(fMRI)包括弥散成像(DWI)、灌注成像(PWI)、弥散张量成像(DTI)、磁共振波谱学(MRS)和血氧水平依赖脑功能成像(BloodOxygenation Level Dependent,BOLD)。DWI 与 PWI能比常规影像检查更早的诊断超急性期脑梗死,从而为早期溶栓治疗争取时间,还能通过二者的对比,显示缺血半暗带与病灶中心区,评估溶栓治疗的疗效和患者的预后。运用 MRS 分析某些生化指标, Overview With the development of new CT and MR technologies, neuroimaging has not only demonstrated simple anatomy, but also provided information on physiological, biochemical and other functions. Generalized functional magnetic resonance imaging (fMRI) includes diffusion imaging (DWI), perfusion imaging (PWI), diffusion tensor imaging (DTI), magnetic resonance spectroscopy (MRS) and blood oxygenation level dependent imaging BOLD). DWI and PWI can diagnose hyperacute cerebral infarction earlier than conventional imaging to gain time for early thrombolytic therapy and to evaluate the thrombolytic therapy by comparing the ischemic penumbra with the central lesion by comparing the two The efficacy and prognosis of patients. MRS analysis of certain biochemical indicators,