Optical dynamic imaging of the regional blood flow in the rat mesentery under the effect of noradrenalin  

作　　者：CHENG Haiying, LUO Qingming, ZENG Shaoqun, CEN Jian and LIANG Wenxi(The Key Laboratory of Biomedical Photonics of Ministry of Education of China, Huazhong University of Science and Technology, Wuhan 430074, China) 

出　　处：《Progress in Natural Science:Materials International》2003年第5期397-400,共4页自然科学进展·国际材料（英文版）

基　　金：the National Natural Science Fund for Distinguished Young Scholars (Grant No.60025514),and National Natural Science Foundation of China (Grant No.59836240)

摘　　要：The regional blood flow in the rat mesentery under the effect of noradrenalin is monitored using the laser speckle imaging method. The results show that at the third minute of application of noradrenalin, the blood flow begins to decrease, and the venule blood flow decreases more rapidly than that in the arteriole. Five minutes later blood flow in part of blood vessels begins to resume and the blood flow in the arteriole recovers more quickly than that in the venule. These suggest that laser speckle imaging can obtain the temporal-spatial characteristic of blood flow in mesentery without the need of scanning. It provides a new approach for investigating the change of regional blood flow in the mesentery in microcirculation studies.The regional blood flow in the rat mesentery under the effect of noradrenalin is monitored using the laser speckle imaging method. The results show that at the third minute of application of noradrenalin, the blood flow begins to decrease, and the venule blood flow decreases more rapidly than that in the arteriole. Five minutes later blood flow in part of blood vessels begins to resume and the blood flow in the arteriole recovers more quickly than that in the venule. These suggest that laser speckle imaging can obtain the temporal-spatial characteristic of blood flow in mesentery without the need of scanning. It provides a new approach for investigating the change of regional blood flow in the mesentery in microcirculation studies.

关 键 词：laser speckle imaging MESENTERY regional blood flow. 

分 类 号：R965[医药卫生—药理学]