Diagnostic value of ultrasonography for placenta accreta in high risk first-trimester pregnant women
10.3760/cma.j.issn.1671-7368.2019.06.013
- VernacularTitle:胎盘植入高风险孕妇妊娠早期超声影像特点分析
- Author:
Yanfen YANG
1
;
Minmin TANG
;
Ruyong SHI
Author Information
1. 浙江省金华市妇幼保健院影像科 321000
- Keywords:
Pregnancy trimester,first;
Ultrasonography;
High risk pregnant women;
Placenta accreta
- From:
Chinese Journal of General Practitioners
2019;18(6):572-575
- CountryChina
- Language:Chinese
-
Abstract:
The clinical data of 113 early pregnant (11-14 weeks) women with high risk of placenta accreta undergoing ultrasound examination in Jinhua Maternal and Child Health Hospital from June 2013 to June 2018 were retrospectively analyzed.Among them,there were 21 cases of placenta accreta (implanted group) and 92 cases without placenta accreta (non-implanted group).The diagnostic value of different μltrasound signs for placenta accreta was assessed.The sensitivity of loss of clear zone was 71％(15/21),and the specificity was 87％ (80/92);the sensitivity of placental lacunae and bladder wall interruption was 67％(14/21) and 62％(13/21),and the specificity was 78％(72/92) and 95％(87/92),respectively.The uterovesical hypervascularity has the lowest sensitivity (38％,8/21),but the highest specificity (98％,90/92).When combination of 2 sings was used for diagnosis,the sensitivity of the ultrasound examination was 76％ (16/21) and the specificity was 65％(60/92);when the combination of 3 signs was used,the sensitivity and specificity were 76％ (16/21) and 93％ (86/92),respectively.It is suggested that ultrasound examination in early pregnancy may find all types of placenta implants with good diagnostic accuracy.
