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目的:通过对中孕期超声筛查外耳的显示率及筛查用时的观察,分析中孕期超声筛查外耳的可行性。方法:选择我院孕20-24+6周中孕期超声筛查胎儿为研究对象,在常规部位筛查的同时加查胎儿外耳,分别记录筛查总用时、外耳检查及测量用时;统计外耳显示率。结果:中孕超声筛查期所有胎儿一只外耳检查显示率为100%,而两只同时显示率为74.6%,一只检出平均所用时间为15.04s,中孕超声筛查全部用时为439.5s,占比为3.4%。结论:中孕期超声常规筛查胎儿一侧外耳是可行的。
OBJECTIVE: To analyze the feasibility of ultrasound screening of the auris in the second trimester through the display rate of the outer ear during the second trimester and the time of screening. Methods: Fetal ultrasound screening fetus of 20-24 + 6 weeks pregnant in our hospital was selected as the research object. The external ear of the fetus was screened at the same time of routine screening and the time of external ear examination and measurement was recorded respectively. rate. Results: In the second trimester ultrasound screening, the rate of one external ear examination in all fetuses was 100%, while the two showed 74.6% at the same time. The average time for one detection was 15.04s, while that for the second trimester ultrasound was 439.5 s, accounting for 3.4%. Conclusion: It is feasible to screen the external ear on the fetus by ultrasound in the second trimester.