Objective To observe change of the active volume of motor cortex with bold oxygenation level dependent functional magnetic resonance imaging(BOLD-fMRI)quantitatively,and evaluate normal motor cortex active characteristics in rehabilitation therapy of diseases involving motor cortex in pre and post therapy.Materials and Methods 15 patients of motor cortex lesion,20 normal volunteers as control group,were performed fMRI,following up in patient group after therapy in 1~14 days,1 month and 3 months.Results Moto...