中文摘要：

目的：观察电针对胃血流灌注的影响，寻找反映胃血流变化的研究方法。方法：在建立一种新的结扎大鼠胃右动脉而形成胃缺血再灌注模型的基础上，电针“足三里”穴，采用激光多普勒血流灌注成像仪（LDPI）对胃血流灌注图像予以显示，分析电针对胃血流灌注的作用。结果：①新的胃缺血再灌注模型显像清晰。电针组在缺血30min内，缺血程度较对照组为轻；再灌注后血流的恢复效果也优于对照组。②在结扎25min时，电针组血流量的变化均值为（-0．50±0．18）PU，与对照组（-0．90±0．16）PU比较，差异有显著性意义（P〈0．05）。结论：电针可改善并促进缺血再灌注胃的血流供应；结扎和松解胃右动脉而形成的胃缺血和再灌注模型可以用于针灸研究中。

英文摘要：

Objective To observe effects of electroacupuncture（EA） on gastric blood perfusion and search for a study method reflecting changes of blood perfusion. Methods On the basis of establishing a new gastric ischemia- reperfusion model which was made by ligature of gastric right artery, EA was given at ＂Zusanli＂ （ST 36） and the gastric blood perfusion images were displayed by a laser Doppler blood perfusion imager （LDPI）, and effects of EA on gastric blood perfusion were analyzed. Results （1） The image of the gastric ischemia-reperfusion is clear. The ischemic degree of the stomach in the EA group was lower than the control group within 30 min of ischemia, and recovery of blood flow after perfusion in the EA group was better than the control group; （2） at 25 min of ligature, there was a significant difference in changes of blood perfusion between the EA group [（- 0.50 ± 0. 18） PU] and the control group [（-0.90±0.16） PU], P〈0.05. Conclusion EA can improve and promote gastric blood supply in the gastric ischemia-reperfusion model, which can be used for acupuncture and moxibustion experimental study.