摘要
目的:探讨超声成像中胎儿脊柱长度与胎龄的关系。方法:采用超声仪对259名正常单胎孕13～23周胎儿脊柱长度、股骨长、双顶径进行测量,建立相关线形回归方程。结果:脊柱和胎龄的线形回归方程为:脊柱长度(mm)=7.086孕周-39.176,相关系数为0.956。并建立脊柱长度与股骨长及双顶径线形回归方程。结论:在孕中期,脊柱长度与胎龄之间有较好的相关,脊柱长度可以作为参数之一估算胎龄,评估胎儿生长发育状态。
Objective： To establish a nomogram of fetal spine length in the second trimester of pregnancy by two dimensional ultrasound. Methods： Fetal spine length, femur length, biparietal diameter were measured prospectively by means of transabdominal ultrasonography in 259 normal singleton pregnancies between 13-23 weeks gestation. Liner regression equations were established. Results： This study defines the normal limits of fetal spine length in the second trimester of pregnancy and demonstrates a high correlation between spine length, gestational age, femur length and biparietal diameter. Conclusion： Spine length can be used to evaluate gestational age in the second trimester of pregnancy
出处
《天津医科大学学报》
2005年第3期443-444,447,共3页
Journal of Tianjin Medical University
关键词
胎儿
脊柱长度
胎龄
B型超声波
Fetal spine length
Pregnancy
Second trimester
Ultrasound
