胎儿外耳的产前超声观察

发布时间：2018-06-24 06:41

本文选题：外耳 + 胎儿　；参考：《中国临床医学影像杂志》2017年02期

【摘要】：目的:探讨胎儿外耳的产前超声观察。方法:随机选择11~14孕周、16~20孕周、24~28孕周、32~36孕周的胎儿400例,应用产前超声多切面、多角度观察胎儿双侧外耳的情况,总结超声扫查胎儿外耳的显示率、最佳时期、探查切面。结果:胎儿外耳的显示例数与孕周呈负相关(r=-0.994,P=0.006),随着孕周的增加外耳显示率降低,11~14孕周胎儿外耳的显示率最高,达100%,32~36孕周最低;11~14孕周以乳突切面冠状位扫查和经枕骨大孔切面冠状位扫查显示率最高,其余孕周以左右颞骨旁矢状切面最易探查胎儿外耳,经乳突切面冠状位、经枕骨大孔切面冠状位和左、右颞骨旁矢状切面外耳获取数与孕周呈负相关,回归方程分别为:Y=242.239-5.674X(r=0.938,P=0.018);Y=242.092-5.547X(r=0.944,P=0.016);Y=194.375-1.392X(r=0.605,P=0.021)。从外耳轮廓获取数看,16~20孕周及24~28孕周最能观察出胎儿耳廓形态,而11~14孕周胎儿显示差,但各孕周胎儿耳廓形态总获取率比较,χ~2=24.00,P=0.293。结论:不同孕周产前超声对胎儿外耳的显示率不同,以11~14孕周胎儿外耳的显示率最高,随着孕周增加,显示率下降。
[Abstract]:Objective: to study the prenatal ultrasound observation of fetal external ear. Methods: 400 fetuses with a gestational age of 24 ~ 28 weeks and 32 ~ 36 weeks of gestation were randomly selected to observe the bilateral external ears of the fetus from different angles, and to summarize the display rate of the external ears by ultrasound scan. The best time was to explore the cut surface. Results: there was a negative correlation between the number of cases of fetal external ear display and gestational weeks (r = -0.994). With the increase of gestational weeks, the display rate of external ear decreased with the increase of gestational week. The lowest rate of 11 ~ 14 gestational weeks was 100 ~ (32) ~ (36) gestational weeks with mastoid section coronal scan and occipital foramen section coronal scan. The other gestational weeks were the best to detect the external ear of the fetus with the sagittal section of the left and right temporal bone and the coronal position of the mastoid incision. There was a negative correlation between the coronal position and the right and left temporal foramen of the occipital foramen. The regression equations were as follows: (1) the ratio of the external ear on the lateral sagittal section of the occipital foramen was negatively correlated with the gestational week, and the regression equations were respectively: yong 242.092-5.547X (r ~ (0.944P0.016) and Y194.375-1.392X (r ~ (0.605N) P 0.021), and the regression equations were as follows: (1) Y ~ (242.092-5.547X) (r ~ (0.944P0.016) (r = 0.605P 0.021). The shape of fetal auricle was best observed at 16 ~ 20 gestational weeks and 24 ~ 28 gestational weeks, but the fetal appearance of 11 ~ 14 gestational weeks was poor, but the total obtainment rate of fetal auricle shape in each gestational week was 0.293. Conclusion: the display rate of fetal external ear by prenatal ultrasound in different gestational weeks is different. The display rate of fetal external ear at 11 ~ 14 weeks of gestation is the highest, and the display rate decreases with the increase of gestational week.
【作者单位】：河北省唐山市妇幼保健院;
【基金】：河北省科技计划项目(152777125)
【分类号】：R714.5;R445.1

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