NT超声检查在早孕期胎儿筛查中的临床价值分析

目的：研究将颈项透明层厚度（NT）超声检测。把其应用到早孕期胎儿中，对其检测结果、正常胎儿与异常胎儿的NT的作用与效果。方法：2019年1月～2020年12月，于本院接收并对其早孕期胎儿进行检测的孕妇，共208例，对全部孕妇均应用NT超声对早孕期胎儿进行检测，比较患者的疗效。结果：(1)检测后，异常、正常依次是35例（16.83%）、173例（83.17%）；分娩结局指出，NT超声检测检出无脑儿畸形、露脑畸形、颈部水囊状淋巴管瘤减少依次是2例、1例、6例，总误诊率9例（4.33%）；分娩结局指出，NT超声检测检出脑膜脑膨出、单心室、心脏外翻增多依次是1例、1例、1例，总漏诊率3例（1.44%）。(2)检测后，异常胎儿的颈项透明层（3.63±0.24）mm，相较于正常胎儿颈项透明层（1.84±0.03）mm对比更厚，P<0.05。结论：在对早孕期胎儿进行检测期间，应用NT超声检测，能够改善孕妇检测结果，并提升胎儿畸形的总检出率，能够给临床中早孕期胎儿方面的筛查给予更多的参照。

Analysis of the Clinical Value of NT Ultrasound in Fetal Screening in Early Pregnancy

Objective:To study the ultrasonic measurement of cervical transparent layer thickness(NT).It was applied to the fetus in early pregnancy,and the effect of NT on its detection results,normal fetus and abnormal fetus.Methods:From January 2019 to December 2020,a total of 208 pregnant women received and tested their fetuses during early pregnancy in our hospital.NT ultrasound was applied to all pregnant women to test the fetuses during early pregnancy,and the efficacy of the patients was compared.Results:①After detection,35 cases(16.83%)were abnormal and 173 cases(83.17%)were normal;The results showed that there were 2 cases of anencephaly,1 case of exposed encephaly and 6 cases of cervical cystic lymphangioma detected by NT ultrasonography,and the total misdiagnosis rate was 9 cases(4.33%).The results showed that the increase of meningocele,single ventricle and heart eversion detected by NT ultrasonography was 1 case,1 case and 1 case respectively,and the total missed diagnosis rate was 3 cases(1.44%).②After detection,the transparent cervical layer of the abnormal fetuses was(3.63±0.24)mm,which was thicker than that of the normal fetuses(1.84±0.03)mm,P<0.05.Conclusion:During the detection of fetuses in early pregnancy,the application of NT ultrasound can improve the detection results of pregnant women and increase the total detection rate of fetal malformation,which can provide more reference for the screening of fetuses in early pregnancy in clinical practice.