Department of Traditional Asian Medicine, Graduate School of Medicine, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
Evid Based Complement Alternat Med. 2012;2012:513638. doi: 10.1155/2012/513638. Epub 2012 Jun 21.
Color Doppler imaging (CDI) can be used to noninvasively create images of human blood vessels and quantitatively evaluate blood flow in real-time. The purpose of this study was to assess the effects of acupuncture on the blood flow of the peripheral, mesenteric, and retrobulbar arteries by CDI. Statistical significance was defined as P values less than 0.05. Blood flow in the radial and brachial arteries was significantly lower during needle stimulation on LR3 than before in healthy volunteers, but was significantly higher after needle stimulation than before. LR3 stimulation also resulted in a significant decrease in the vascular resistance of the short posterior ciliary artery and no significant change of blood flow through the superior mesenteric artery (SMA) during acupuncture. In contrast, ST36 stimulation resulted in a significant increase in blood flow through the SMA and no significant change in the vascular resistance of the retrobulbar arteries. Additionally, acupuncture at previously determined acupoints in patients with open-angle glaucoma led to a significant reduction in the vascular resistance of the central retinal artery and short posterior ciliary artery. Our results suggest that acupuncture can affect blood flow of the peripheral, mesenteric, and retrobulbar arteries, and CDI can be useful to evaluate hemodynamic changes by acupuncture.
彩色多谱勒成像（CDI）可用于非侵入性地创建人体血管的图像，并实时定量评估血流。本研究的目的是通过 CDI 评估针刺对周围、肠系膜和球后动脉血流的影响。统计显著性定义为 P 值小于 0.05。在健康志愿者中，LR3 针刺刺激时桡动脉和肱动脉的血流明显低于针刺前，而针刺后明显高于针刺前。LR3 刺激还导致睫状后短动脉血管阻力显著降低，而针刺期间肠系膜上动脉（SMA）的血流无显著变化。相比之下，ST36 刺激导致 SMA 的血流明显增加，而球后动脉的血管阻力无显著变化。此外，在开角型青光眼患者中针刺先前确定的穴位可导致视网膜中央动脉和睫状后短动脉血管阻力显著降低。我们的结果表明，针刺可以影响周围、肠系膜和球后动脉的血流，CDI 可用于评估针刺引起的血液动力学变化。
