艾灸健康人百会穴对右侧大脑中、后动脉血流动力学影响的研究

目的 :探讨艾灸百会穴治疗缺血性脑血管病的机理。方法 :选择本校健康男性学员 3 0名 ,年龄 2 0～ 2 2岁之间 ,应用美国AcusonSequoia51 2型超声诊断仪 ,探头频率 4 0MHz,由固定专人操作 ,分别于艾灸前及艾灸后 ,测试右侧大脑中、后动脉Vmax(最大血流速度 )、Vmin(最小血流速度 )、PI (搏动指数 )、RI (阻力指数 )等血流动力学有关参数。结果 :艾灸百会穴 5天后 ,右侧大脑后动脉Vmin增加显著 (P <0 0 5) ,右侧大脑中动脉Vmax、Vmin及右侧大脑后动脉Vmax、PI、RI增加非常显著 (P <0 0 1 ) ,右侧大脑中动脉PI、RI各指标虽有不同程度的改变 ,但无统计学意义。结论 :艾灸百会穴可使右侧大脑中、后动脉血流速度明显加快 ,脑血流量增加 ,脑部血液循环明显改善。这对揭示艾灸百会穴治疗缺血性脑血管病的机理具有重要意义。

Effect of Moxibustion of Baihui on Hemodynamics of the Right Middle Cerebral Artery and Posterior Cerebral Artery in Health People

To study the effects of moxibustion of Baihui(GV 20) on the hemodynamics of middle cerebral artery (MCA) and posterior cerebral artery (PCA) in health subjects.Methods: Thirty cases of healthy male students between 20 and 22 years in the age were enrolled into this study. Vmax (maximal velocity of blood flow),Vmin (minimal velocity of blood flow), PI (pulsatile index) and RI(resistant index) of right MCA and PCA were measured before and after moxibustion of GV 20 (5～10?min each time, once daily, 5 times altogether) by using Acuson Sequoia 512 Detector of Ultrasound Diagnostics.Results:Following moxibustion of GV 20, Vmax and Vmin of the right MCA, Vmax, Vmin,PI and RI of the right PCA increased significantly ( P <0.05～0 01). The rest indexes had no significant changes( P >0 05).Conclusion:Moxibustion of Baihui(GV 20) can significantly raise the velocity of blood flow of the right middle cerebral artery and posterior cerebral artery in normal people.