重复经颅磁刺激治疗脑卒中后运动功能障碍的功能影像学改变
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国家自然科学基金(81271559);四川省医学科研青年创新课题(Q16047)


Altered ALFF and curative effect of highfrequency rtms treatment on stroke patients with motor dysfunction
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    【摘要】 目的 研究重复经颅磁刺激(Repetitive Transcranial Magnetic Stimulation, rTMS)对缺血性脑卒中后运动功能障碍患者的康复治疗效果及其功能影像学变化。方法 纳入缺血性脑卒中患者15例,分为rTMS治疗组8例和传统康复治疗组(Conventional Therapy,CT)7例;rTMS组除接受10天高频rTMS治疗外,其他治疗措施与CT组相同。治疗前和治疗后分别对两组的临床评分进行评估,并进行功能磁共振图像(Functional Magnetic Resonance Imaging, fMRI)采集,比较两组治疗前后及组间临床评分及神经活动低频振幅(Amplitude of Low Frequency Fluctuation, ALFF)的变化情况。结果 与治疗前相比,治疗后两组的神经功能明显改善。rTMS组患者的FMA和BI评分改善优于CT组。另外,治疗后两组患者的ALFF比较差异有统计学意义(P<0.05)。其中ALFF值增加的脑区包括:右侧壳核、左侧小脑;ALFF值降低的脑区有:双侧M1区、双侧SMA区、右侧丘脑、右侧小脑。结论 高频rTMS可以用于缺血性脑卒中后运动功能障碍患者的康复治疗,且高频rTMS可能通过影响大脑内相关区域的神经活动强度达到康复效果。

    Abstract:

    【Abstract】 Objective To investigate the effects of repetitive transcranial magnetic stimulation (rTMS) on motor function recovery after ischemic stroke by using amplitude of low frequency fluctuation (ALFF) and clinical assessments.Methods 15 patients were assigned to rTMS treatment (RT) group (8 cases) and conventional treatment (CT) group (7 cases). The patients in RT group received 10 Hz rTMS treatment for 10 days plus conventional treatment. The FuglMeyer (FM), Barthel Index (BI) and ALFF were measured before and after treatment in the two groups.Results The FM and BI scores significantly increased after treatment in rTMS group and CT group (P<0.05). FM and BI scores had significantly difference between rTMS group and CT group (P<0.05). In addition, there was a significant difference in ALFF between the two groups after treatment (P<0.05). The ALFF significantly increased in the right putamen and left cerebellum, and ALFF significantly decreased in the bilateral primary motor cortex (M1), bilateral SMA, right thalamic and right cerebellum.Conclusion HFrTMS may improve the motor dysfunction after ischemic stroke. This might be associated with the mechanism that rTMS affects the neuronal activity of movementrelated areas in the brain.

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  • 在线发布日期: 2017-06-16
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