【摘要】 目的 探讨便捷、经济、可靠的孕妇骨密度测定方法，以了解孕妇体内缺钙情况，为妇产科临床合理补钙提供科学依据。 方法 利用超声骨密度仪对银川地区222例不同孕期的妇女测定跟骨骨密度(BMD)，从而判断孕妇缺钙情况。 结果 随着孕周的增加，与骨密度相关的指标SOS、Stiffness、T-score、Z-score均逐渐下降，差别有显著性或非常显著性。而且孕周与SOS，Stiffness，T-score，Z-score均呈明显负相关，其r值和P值分别为:r=-0.324，P<0.01;r=-0.173，P<0.05;r=-0.248，P<0.01;r=-0.249，P<0.01。 结论 运用超声骨密度仪测定孕期BMD，操作简便，安全无创伤，无辐射，能正确指导孕妇及时合理补充钙剂。

    【关键词】 妇女 妊娠 骨密度 跟骨

    Analysis of bone density change of gravidas

    Cui Meixin，Zhao Weiming，Kong Xiangfen

    Maternal and Child Health Care Hospital of Ningxia Autonomy Region，Yinchuan750001.

    【Abstract】 Objective This study is to provide scientific evidence for the prevention and treatment of bone density decrease during pregnancy in Yinchuan area through observing dynamic change of bone density in pregnant women.Methods The bone density of calcanei of222gravidas in different gestational age was measured with ultra-sonic bone densitometry to judge the severity of calcium deficiency during pregnancy.Results The measurements re-lated to bone density study ......