摘要
目的:探讨B超估算孕周与月经周期的关系。方法:对1800例<50d早孕者,应用深圳EMP-1000型凸阵探头,探头频率3.5MHz～5.0MHz,膀胱适度充盈,仰卧位,经腹超声检查并与月经周期比较进行统计学分析。结果:月经周期<28d,B超估算孕周比胎龄大3d以上者86.0%;月经周期28d～32d,B超估算孕周与胎龄相符者89.6%;月经周期>32d,B超估算孕周比胎龄小3d以上者91.6%。不同月经周期B超估算孕周与胎龄差异有显著性(P<0.01)。结论:月经周期28d～32d,B超估算孕周直接查表,月经周期<28d或>32d,B超估算孕周应减去或加上月经提前或推后的天数。
Objective To evaluate the connection between menstrual cycle and ultrasound predicted gestational week.Methods Belly examinations through ultrasound were conducted to 1,800 early pregnant women(who had been pregnant for less than 50 days) using Shenzhen EMP-1000 convex array probe with a frequency of 3.5 MHz～5.0 MHz.All the patients were required to be in supine position with appropriately full bladder,The results of the examination were compared with their menstrual cycle and statistically analyzed.Results...
出处
《实用医技杂志》
2008年第15期1908-1909,共2页
Journal of Practical Medical Techniques
关键词
B超
早期妊娠
妊娠囊
月经周期
Ultrasound
Early pregnancy
Gestational sac
Menstrual cycle
