摘要
用单光子吸收测定仪对４４例整月龄（４～９月胎龄）正常胎儿股骨中段的骨矿含量进行测定。结果表明：骨矿含量（ｂｏｎｅｍｉｎｅｒａｌｃｏｎｔｅｎｔ，ＢＭＣ）、骨宽度（ｂｏｎｅｗｉｄｔｈ，ＢＷ）和骨密度（ＢＭＣ／ＢＷ）随胎龄的增加而增加。ＢＭＣ、ＢＭＣ／ＢＷ在４～７月胎龄为加速增长期，７月胎龄以后为迟缓增长期；ＢＷ在４～５月胎龄增长速度快，５月胎龄以后较慢、但仍以相对稳定的速度增长。本研究还证实胎儿期骨矿含量各参数无性别差异，也无左、右侧差异。ＢＭＣ，ＢＭＣ／ＢＷ与体重、顶臀长、股骨长、胎龄呈正相关，而且其曲线相关优于其直线相关，并推导出其回归方程。ＢＷ与胎龄呈直线相关。骨矿含量是反映胎儿生长发育的一项客观指标。
In 44 normal fetuses with the ages of 4 9 months, bone mineral content (BMC) at the midshaft of femur was determined with single photon absorptiometry (SPA). The results showed that BMC, bone width (BW) and BMC/BW increase as fetal age advanced. During the age of 4 7 months, BMC and BMC/BW were at the accelerated growth stage, but after the age of 7 month, BMC and BMC/BW were at the retarded growth stage. During the age of 4 5 months BW increased more rapidly, but after the age of 5 month, BW increased relatively slow and stable. The study proved that the differences of BMC and BMC/BW between left and right sides of the femur and between female and male were non significant. There were positive correlation between BMC, BMC/BW and age. weight, crown rump length (CRL), femur length (FL). The increase in BMC, BMC/BW with age, weight, CRL and FL was best predicted by a curvilineal regression analysis. The increase in BW with age was predicted by a linear regression analysis. BMC, BMC/BW were objective parameters reflected development of fetus.
出处
《解剖学报》
CAS
CSCD
北大核心
1997年第1期89-93,共5页
Acta Anatomica Sinica
基金
国家自然科学基金
关键词
胎儿
骨矿含量
骨密度
骨宽度
completed month age fetus
bone mineral content
BMC/BW
bone width.
