Department of Physical Medicine and Rehabilitation, School of Medicine, Yeungnam University Taegu, Republic of Korea.
NeuroRehabilitation. 2010;26(2):163-6. doi: 10.3233/NRE-2010-0549.
We describe a patient with cortical infarct, whose sensori-motor function for the hand seemed to be reorganized into the lateral area, as demonstrated by functional MRI (fMRI).
A 59-year-old male patient presented with severe sensori-motor dysfunction of the left hand, which first occurred at the onset of an infarct in the right primary sensori-motor cortex (SM1) centered on the precentral knob. The sensori-motor function of the affected hand recovered to a normal state at 6 months from onset. fMRI was performed using the blood oxygen level-dependent technique at 1.5T with a standard head coil (at 6 months from onset). The active and passive movements were performed at the metacarpophalangeal joint using a specially equipped apparatus, and touch stimulation was applied on the dorsum of the hand using a rubber brush.
The contralateral SM1 centered on the precentral knob was found to be activated during the active movements, passive movements, and touch of the unaffected (right) hand movements. By contrast, the lateral area of the infarcted SM1 of the right hemisphere was activated during the three kinds of stimulation of the affected hand.
We conclude that the sensori-motor function of the affected hand seemed to have been reorganized into the lateral area of the infarcted SM1.
我们描述了一名患者的皮质梗死病例，其手部的感觉运动功能似乎通过功能磁共振成像（fMRI）重新分布到了外侧区域。
一名 59 岁男性患者出现左手严重的感觉运动功能障碍，该症状最初出现在右侧初级感觉运动皮层（SM1）的梗死中心，位于中央前回上。发病 6 个月后，患手的感觉运动功能恢复正常。使用标准头部线圈在 1.5T 磁共振扫描仪上进行血氧水平依赖技术的 fMRI（发病后 6 个月）。使用专门的设备在手的掌指关节处进行主动和被动运动，并用橡胶刷在手上施加触诊刺激。
在主动运动、被动运动和未受影响（右侧）手运动的触诊过程中，发现对侧位于中央前回上的 SM1 中心被激活。相比之下，右侧大脑半球梗死的 SM1 的外侧区域在受影响手的三种刺激过程中被激活。
我们得出结论，患手的感觉运动功能似乎已经重新分布到梗死的 SM1 的外侧区域。
