摘要
目的：评价彩超用于产科诊断剂量的安全性。材料和方法：应用电子显微镜，采用析因分析方法，研究彩色多普勒诊断剂量对仔鼠超微结构的影响。结果：用不同频率彩色多普勒按不同时间照射SD大鼠宫内胚胎后，实验组与对照组之间仔鼠肝、脑、骨髓超微结构无显著差异，频率与时间之间的交互作用亦不明显。结论：彩色多普勒7．0MH2照射30min以内不影响仔鼠的超微结构。
Prupose: To evaluate the safety of obstetric application of color Doppler ultrasound. Materials and Methods: using factorialanalysis, the ultrastructure of 80 newborn rats from pregnant rats undergoing diagnostic color Doppler Ultrasound of different were observedunder electron microscope. Results: It was showed that ultrastructure of the newborn was not affected and the cross effect of both scanningtimes and frequencies was not significantly different to control. Conclusion: Color dappler Ultrasound application on pregnant mother ratsusing tranducer frequency of 7. 0 MHz for 30 minutes does not influesnce ulstrastructure of newborn rats.
出处
《中国医学影像学杂志》
CSCD
1998年第4期289-291,共3页
Chinese Journal of Medical Imaging
