Volume 49, Issue 1 pp. 12-19
RESEARCH ARTICLE

Three-dimensional power Doppler ultrasonography indicates that increased placental blood perfusion during the third trimester is associated with the risk of macrosomia at birth

Jizi Zhou MD

Jizi Zhou MD

Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China

Jizi Zhou and Yu Xiong contributed equally to this work.

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Yu Xiong MD

Yu Xiong MD

Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China

Jizi Zhou and Yu Xiong contributed equally to this work.

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Yunyun Ren MD

Yunyun Ren MD

Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China

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Ying Zhang MD

Ying Zhang MD

Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China

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Xiaotian Li MD

Corresponding Author

Xiaotian Li MD

Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China

Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University, Shanghai, China

Institute of Biomedical Sciences, Fudan University, Shanghai, China

Correspondence

Xiaotian Li and Yingliu Yan, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.

Email: [email protected] (X. L.) and [email protected] (Y. Y.)

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Yingliu Yan MD

Corresponding Author

Yingliu Yan MD

Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China

Correspondence

Xiaotian Li and Yingliu Yan, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.

Email: [email protected] (X. L.) and [email protected] (Y. Y.)

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First published: 22 September 2020
Citations: 4

Abstract

Purpose

To investigate the association between placental blood perfusion and the occurrence of macrosomia at birth.

Methods

This was a prospective cohort study including women with singleton pregnancies that aimed to measure placental blood perfusion using three-dimensional (3D) power Doppler ultrasonography in the second and third trimester. We acquired three indices of placental blood flow, including vascularization index (VI), flow index (FI), vascularization flow index (VFI), along with routine two-dimensional (2D) biometric measurements, including abdominal circumference (AC) and estimated fetal weight (EFW). Pregnancy outcomes were divided into two groups: newborns with a normal birth weight and those with macrosomia. We then compared all of the recorded variables between these two groups. We also determined the predictive efficiency of each variable using receiver-operating characteristic (ROC) curves.

Results

The placental 3D power Doppler indices, including VI and FI, were significantly higher in the third trimester of pregnancies developing macrosomia, but not during the second trimester, as compared to those with a normal birth weight. ROC curves analysis for third-trimester VI and FI suggested a slight ability to predict macrosomia; this was also the case for AC and EFW. Interestingly, VI showed high sensitivity and low specificity, while FI showed low sensitivity and high specificity; this was also the case for AC and EFW.

Conclusions

Three-dimensional power Doppler ultrasound indices were significantly higher during the third-trimester for pregnancies developing macrosomia. However, these indices had only moderate ability to predict macrosomia.

CONFLICT OF INTEREST

The authors declare that we have no conflict of interest.

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