以单光子发射计算机断层摄像观察针刺对局部脑血流量和脑功能活动的影响

采用单光子发射计算机断层（ＳＰＥＣＴ）摄像技术对１１例健康人和９例脑血管病患者针刺前后局部脑血流量（ｒＣＢＦ）及脑功能活动进行对比观察。结果表明：留针和电针刺激对对侧大脑半球皮质、对侧丘脑、同侧基底核和双侧小脑的作用有显著性差异（Ｐ＜０．０１），电针者血流功能变化率高于留针者。推测针刺肢体穴位对脑血供的改善和激发脑神经细胞功能活动有赖于中枢神经的调节，主要是通过特异感觉和非特异感觉传入系统，同时亦有锥体外系和小脑的参与。脑血管病患者对电针刺激比健康人敏感。

英文摘要:

Observation on effect of acupuncture on regional cerebral blood flow(RCBF) and cerebral functional activity was conducted in 11healthy volanteers and 9patients with cerebral vascular disease by using single-photon emission computed tomography.Results showed a significant difference in effect of needle retention and electro-acupuncture stimulation on contralateral cerebral hemisphere cortex and thalamus,ipsilateral basal ganglion and bilateral cerebella,the change on cerebral blood flow induced by electroacupuncture was greater than that induced by the former method.It is speculated that the improvement of cerebral blood supply and stimulation of functional activity of brain nerve cells induced by acupuncture on point of extremities depend on the regulatory function of central nerve system.Stimulations were transmitted in mainly through specific and non-specific sensory afferent systems,also the involvement of extrapyramidal system and cerebellum.Patients with cerebral vascular diseases are more sensitive to electro-acupuncture than healthy subjects.

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