低强度超声对大鼠在体子宫平滑肌收缩的影响

The effect of low intensity ultrasound on the contraction of uterine smooth muscle in rats in vivo

目的:研究低强度超声对大鼠在体子宫平滑肌收缩的影响。方法:利用频率为0.8MHz,声强为2W/cm2的低强度超声辐照大鼠在体子宫10min。采用BL-410生物机能实验系统记录子宫平滑肌的收缩情况。结果:低强度超声辐照下大鼠子宫收缩频率、幅度、张力及子宫活动力均明显高于辐照前(P<0.05)。结论:低强度超声可以诱导大鼠在体子宫平滑肌收缩。

Objective：To study the influence of low intensity ultrasound on the contraction of uterine smooth muscle in rats in vivo. Methods：The uteri in rats in vivo were irradiated by low intensity ultrasound（0.8MHz,2W/cm^2） for 10 min.The contraction frequency and amplitude were recorded with BL-410 biological experimental system. Results：It could be seen that the contraction frequency,amphtude.tension and contraction activity were significantly increased during ultrasonic irradiation（P〈 0.05）. Conclusion：Low intensity ultrasound can induce uterine smooth muscle contraction in rats in vivo.