摘要
目的:对唐氏综合征早期筛查中超声测量胎儿颈项透明层(NT)的质量控制进行探讨。方法:随机抽取四川大学华西第二医院超声科3位医生各300例胎儿NT值,应用英国胎儿基金会推荐的DQASS原理对数据进行分析,与标准曲线比较制成散点图,分析每位医生的偏倚值(bias)、斜率和离散程度。结果:医生1、医生2、医生3的bias分别为-0.29、-0.53、-0.22,3条直线斜率分别为0.0201、0.0117、0.0225,医生1与医生3的直线斜率无明显差异,医生1、医生3与医生2直线斜率有差异。结论:医生1和医生3的测量bias、斜率及离散程度在满意范围内,医生2的数据偏倚较大,需要进一步培训和学习,原因可能与测量时的胎儿体位及测量游标位置有关。
Objective ：To evaluate the quality control of ultrasonic nuchal translucency measurement quality control in early screening of down＇s syndrome. Methods：300 fetus NT results from each of 3 doctors were se- lected randomly. The clinical data were analyzed with DQASS recommended by FMF. The analysis of bias, slope,scatter of every doctor＇s curve in compare with standard curve were conducted. Results： The bias of three doctors was -0. 29, -0. 53, -0. 22 respectively. The slope of the straight line was 0. 0201,0. 0117, 0.0225 respectively. There was no differences on the slope of the straight line between doctor 1 and 3, howev- er, there was obvious differences between doctor 1,3 and 2 respectively. Conclusions ：The bias, slope,scatter of doctor 1 and 3 were under satisfaction, while doctor 2＇s data showed much more deviations who still need more training and improvements. The reasons of deviations may be the fetus position and cursor location.
出处
《实用妇产科杂志》
CAS
CSCD
北大核心
2014年第2期108-110,共3页
Journal of Practical Obstetrics and Gynecology
关键词
唐氏综合征
筛查
胎儿颈项透明层
质量控制
Down＇s syndrome
Screening fetus
Nuchal translucency
Quality control
