Longitudinal Assessment of Motor Recovery of Contralateral Hand after Basal Ganglia Infarction Using Functional Magnetic Resonance Imaging

Figure 4

Longitudinal observation of brain activation in Case  4 during the voluntary finger opposition task. (a) Diffusion weighted images on the first day of onset showing infarction of the left basal ganglia; (b and c) fMRI in the acute phase demonstrating the activation of the bilateral SMC; (d) diffusion weighted images three months after onset showing the encephalomalacic foci in the left basal ganglia; (e and f) serial fMRI three months after onset demonstrating the activation of the left SMC, left PPC, and left cerebellum; (g) diffusion weighted images 12 months after onset showing no significant changes of the encephalomalacia foci; (h and i) the third-time fMRI twelve months after onset demonstrating the activation of the bilateral SMA and left PFC. fMRI, functional magnetic resonance imaging; SMC, sensorimotor cortex; SMA, supplementary motor area; PPC, posterior parietal cortex; PFC, prefrontal cortex.

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