与探头垂直于子宫轮廓测量相比，当探头垂直于地面测量时，超声估计羊水量是否存在差异？

Is There a Difference in Sonographic Estimation of Amniotic Fluid Volume When Measuring With the Probe Perpendicular to the Floor Compared With Perpendicular to the Uterine Contour?

作者信息

Hughes Dawn S, Whittington Julie R, Kim Hyein, Gunderman Brianna, Ounpraseuth Songthip, Magann Everett F

机构信息

Department of Obstetrics and Gynecology, University of Arkansas for Medical Sciences, Little Rock, AR.

Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea.

出版信息

J Obstet Gynaecol Can. 2019 Sep;41(9):1295-1301. doi: 10.1016/j.jogc.2019.01.017. Epub 2019 Mar 23.

DOI:10.1016/j.jogc.2019.01.017

PMID:30910340

Abstract

OBJECTIVE

This study sought to determine whether there is a significant difference in amniotic fluid measurements when measuring perpendicular to the floor compared with perpendicular to the uterine contour using both amniotic fluid index and single deepest pocket.

METHODS

This was a single-centre, prospective study of women with singleton gestation who were undergoing fetal ultrasound examination. A total of 240 women were enrolled, and single deepest pocket and amniotic fluid index were measured with both techniques. Correlation coefficient and intraclass correlation coefficient were used to assess the agreement between the values using the two methods of measurement (Canadian Task Force Classification II-2).

RESULTS

A strong correlation was found between amniotic fluid index measurements (correlation coefficient 0.82; intraclass correlation coefficient 0.7). A strong correlation also was found between single deepest pocket measurements (correlation coefficient 0.7; intraclass correlation coefficient 0.6).

CONCLUSION

The measurement of amniotic fluid index and single deepest pocket can be performed either perpendicular to the floor or perpendicular to the uterine contour. There is no significant difference between these measurements and they correlate well.

摘要