Prenatal ultrasonic characteristic analysis of umbilical artery thrombosis
10.3760/cma.j.cn131148-20200528-00443
- VernacularTitle:一条脐动脉栓塞的产前超声特征分析
- Author:
Hongmei DONG
1
;
Xiaohang ZHANG
;
Suzhen RAN
Author Information
1. 重庆市妇幼保健院超声科 401147
- From:
Chinese Journal of Ultrasonography
2020;29(10):892-896
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the prenatal ultrasonic characteristics and hemodynamic changes of umbilical artery (UA) thrombosis in fetus, and to improve the accuracy of prenatal ultrasound diagnosis.Methods:The prenatal sonographic features and hemodynamic index of 5 cases with umbilical artery thrombosis(UAT) in Chongqing Health Center for Women and Children from January 2018 to April 2020 were analyzed and summarized retrospectively.Results:The absence of blood flow in one of the two UA was found in the third trimester of pregnancy while two UA were displayed in previous ultrasound scans and the blood flow of the UA on the right side of the bladder disappeared in 5 cases. The umbilical cord cross section showed three cavities in 5 cases. The long axis section of the umbilical cord showed hyperecho in one UA with no blood flow in 4 cases, and no exact hyperecho in the UA only showed no blood flow in 1 case. The UA systolic/diastolic velocity ratio(S/D)<2.0 and UA pulsatility index (PI)<5 th were observed in 5 cases. The middle cerebral artery (MCA) PI<5 th in 4 cases and 10 th
