针刺大钟穴激活脑区的功能MRI研究

A fMRI study of cerebral regions activiated by acupuncture of Dazhong acupoint

目的探讨应用功能MRI(fMRI)针刺大钟穴对脑的激活效应。材料与方法选取12名健康青年志愿者。分别针刺受试者右侧大钟穴(络穴),同时应用3.0T MR扫描仪完成脑部扫描。所获得的实验数据采用统计参数图软件SPM8(statistical parametric mapping)分析处理。结果针刺受试者大钟穴,激活的脑区有双侧小脑前叶,左侧颞下回BA37,左侧颞中回BA38、BA39,左侧颞极BA38,右侧颞极BA32,左侧脑干,左侧苍白球,右侧额中回BA6,左侧额上回BA6。结论大钟穴的脑激活区主要分布在额叶、颞叶、小脑前叶及脑干和苍白球,它们的主要功能是负责躯体感觉冲动的传入,与足跟痛及腰腿痛的脑内躯体感觉中枢相符合。

Objective：To discuss the cerebral activating effects of acupuncturing dazhong acupoint by function magnetic resonance imaging （fMRI）. Materials and Methods： Twelve cases of healthy young volunteers were Choosed. Acupuncture subjects was the right side dazhong acupoint （luo acupoint）. 3.0 T magnetic resonance was used to scan the brain. The obtained experimental data were processed and analyzed by SPM8 （statistical parametric mapping） software. Results：Acupuncturing subjects dazhong acupoint activated anterior cerebellar lobe, the left inferior temporal gyrus BA37, the left middle temporal gyrus BA38, BA39, left temporal pole BA38, right temporal pole BA32, the left side of the brain stem, the left globus pallidus, the right middle frontal gyrus BA6 and the left superior frontal gyrus BA6. Conclusions：Acupuncturing dazhong acupoint that avtivates the brain areas are mainly located in frontal lobe, temporal lobe, anterior cerebellar lobe, brain stem and globus pallidus. Their main function is responsible for the afferent of body sensory impulse. They are consistent with the somatosensory centre of heel pain and waist pain in the brain.