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目的:探讨胎儿胼胝体生长发育规律。方法:对622例孕16～39周胎儿进行胼胝体超声检查,测量胼胝体前后径,并分析其与孕周的关系。结果:胎儿胼胝体前后径与孕周呈正相关(r=0.932,P<0.001),回归方程为:胼胝体前后径(mm)=-9.567+1.495×胎龄(周)。结论:胼胝体随孕周发育的变化规律及其正常测量数据为进一步判断病变提供了参照标准。
Objective: To investigate the growth and development of fetal corpus callosum. Methods: A total of 622 fetuses with gestational age of 16-39 weeks were examined by corpus callosum. The anteroposterior diameter of the corpus callosum was measured and the relationship with gestational age was analyzed. Results: The anteroposterior diameter of fetal corpus callosum was positively correlated with gestational age (r = 0.932, P <0.001). The regression equation was: corpus callosum anteroposterior diameter (mm) = - 9.567 + 1.495 × gestational age. Conclusion: The change of corpus callosum with gestational age and its normal measurement data provide the reference standard for further judging the pathological changes.