Application of high-frequency linear array probe in prenatal diagnosis of fetal kidney fusion anomalies
10.3760/cma.j.cn131148-20200110-00024
- VernacularTitle:高频线阵探头产前诊断胎儿融合肾的应用研究
- Author:
Ning SHANG
1
;
Shuang SHU
;
Yunxiang PAN
;
Ling XU
;
Fenghua LIU
Author Information
1. 广东省妇幼保健院超声诊断科，广州 511400
- From:
Chinese Journal of Ultrasonography
2020;29(5):439-442
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the application value of high-frequency linear array probe in prenatal ultrasound diagnosis of fetal kidney fusion anomalies.Methods:A senior sonographer for prenatal diagnosis used a convex array probe and a high-frequency linear array probe to obtain and store renal images of the transverse section, sagittal and coronal plane and ectopic kidney of 27 fetuses with suspected or diagnosed fetal renal fossa emptiness, abnormal renal position and abnormal renal contour in Guangdong Women and Children Hospital from December 2018 to October 2019. The images were analyzed to judge the possibility of kidney fusions by another senior sonographer (subject 1) and a junior sonographer (subject 2) separately. Then, ROC curves were plotted and statistically analyzed based on postnatal follow-up results. The Kappa coefficient between the two subjects was calculated.Results:Areas under the two ROC curves were 0.969 and 0.756 when using a convex array probe, but 1.000 and 1.000 with a high-frequency linear array probe by two subjects separately. Subject 1 had no significant difference using two kinds of probes ( P>0.05), however, subject 2 had higher diagnostic accuracy when using high frequency linear array probes ( P<0.05). The diagnostic consistence of high-frequency linear array probe between subjects was higher than convex array probe, the Kappa coefficients were 1.000 and 0.516, respectively. Conclusions:The application of high-frequency linear array probe in prenatal diagnosis of fetal kidney fusion anomalies is feasible, and can improve the confidence and diagnostic accuracy for fetal kidney fusion anomalies.
