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为了评价彩超产科应用的安全性，我们运用流式细胞仪技术，采用析因分析的方法，研究诊断剂量彩色多普勒对仔鼠细胞周期的影响。结果：用不同频率（０，２．５，３．５，７．０ＭＨｚ）彩色多普勒按不同时间（０，１０，２０，３０分钟）辐照孕鼠宫内胚胎后，实验组与对照组之间仔鼠各细胞周期ＤＮＡ百分含量无显著差异，频率与时间之间的交互作用亦不明显。表明：彩色多普勒７．０ＭＨｚ及３０分钟以内照射不影响仔鼠细胞周期的ＤＮＡ含量
In order to evaluate the safety of color obstetrical obstetrical applications, we used flow cytometry techniques and factorial analysis to study the effect of diagnostic doses of color Doppler on the cell cycle of young mice. RESULTS: After irradiated intrauterine embryos at different times (0, 10, 20, and 30 minutes) with different frequency (0, 2.5, 3.5, 7.0 MHz) color Doppler, the experimental group and the control group There was no significant difference in the percentage of DNA in each cell cycle of the pups between groups, and the interaction between frequency and time was not significant. Shows that: Color Doppler at 7.0 MHz and within 30 minutes does not affect the DNA content of the pups’ cell cycle