针刺的脑成像:浅刺与深刺的比较。
Brain imaging of acupuncture: comparing superficial with deep needling.
作者信息
MacPherson Hugh, Green Gary, Nevado Angel, Lythgoe Mark F, Lewith George, Devlin Ross, Haselfoot Robyn, Asghar Aziz U R
机构信息
Department of Health Sciences, University of York, YO10 5DD, United Kingdom.
出版信息
Neurosci Lett. 2008 Mar 21;434(1):144-9. doi: 10.1016/j.neulet.2008.01.058. Epub 2008 Jan 31.
The difference between superficial and deep needling at acupuncture points has yet to be mapped with functional magnetic resonance imaging (fMRI). Using a 3T MRI, echo planar imaging data were acquired for 17 right-handed healthy volunteer participants. Two fMRI scans of acupuncture needling were taken in random order in a block design, one for superficial and one for deep needling on the right hand at the acupuncture point LI-4 (Hegu), with the participant blind to the order. For both scans needle stimulation was used. Brain image analysis tools were used to explore within-group and between-group differences in the blood oxygen level dependent (BOLD) responses. The study demonstrated marked similarities in BOLD signal responses between superficial and deep needling, with no significant differences in either activations (increases in BOLD signal) or deactivations (decreases in BOLD signal) above the voxel Z score of 2.3 with corrected cluster significance of P=0.05. For both types of needling, deactivations predominated over activations. These fMRI data suggest that acupuncture needle stimulation at two different depths of needling, superficial and deep, do not elicit significantly different BOLD responses. This data is consistent with the equivalent therapeutic outcomes that are claimed by proponents of Japanese and Chinese styles of acupuncture that utilise superficial and deep needling, respectively.
针刺穴位时浅刺与深刺之间的差异尚未通过功能磁共振成像(fMRI)进行描绘。使用3T磁共振成像仪,对17名右利手健康志愿者采集了回波平面成像数据。在组块设计中,以随机顺序对针刺进行了两次fMRI扫描,一次是在右手的LI-4(合谷)穴位进行浅刺,另一次是深刺,参与者对顺序不知情。两次扫描均采用针刺激。使用脑图像分析工具来探究组内和组间在血氧水平依赖(BOLD)反应方面的差异。该研究表明,浅刺与深刺之间的BOLD信号反应存在显著相似性,在体素Z分数高于2.3且校正后的聚类显著性为P = 0.05时,激活(BOLD信号增加)或失活(BOLD信号减少)均无显著差异。对于两种针刺类型,失活均多于激活。这些fMRI数据表明,在浅刺和深刺这两种不同针刺深度下的针刺刺激,不会引发显著不同的BOLD反应。该数据与分别采用浅刺和深刺的日本和中国针灸流派支持者所宣称的等效治疗效果一致。