Comparison of two-dimensional and three-dimensional ultrasound in the assessment of the cervix to predict preterm delivery
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- 作者：Severi ; Filiberto Maria ; Bocchi ; Caterina ; Florio ; Pasquale ; Picciolini ; Enrico ; D'Aniello ; Gemma ; et. al.
- 关键词：Preterm delivery ; Transvaginal sonography ; 3-D ultrasound ; Cervical length ; Cervical funnel
- 刊名：Ultrasound in Medicine and Biology
- 出版年：2003
- 出版时间：September, 2003
- 年：2003
- 卷：29
- 期：9
- 页码：1261-1265
- 全文大小：118 K
文摘
This study sought to determine whether 3-D transvaginal ultrasound (3D-TVS), compared with the 2-D transvaginal approach (2D-TVS), offers a better identification of some specific features of the uterine cervix that could be useful in the prediction of spontaneous preterm delivery (PTD). A total of 103 women with singleton pregnancies were prospectively evaluated with 2D-TVS and 3D-TVS in the second or third trimester of pregnancy. Statistical analysis was performed with Wilcoxon matched-pairs test, χ2 and Pearson test (p < 0.05 was considered significant) and receiver operating characteristic (ROC) curve analysis. Significant differences between these approaches were found for cervical length (p < 0.001). A significant correlation was identified between 3D-TVS cervical length and the interval between ultrasound examination and delivery as well as the gestational age at delivery (both p < 0.001). ROC curve identified a threshold for 3D-TVS cervical length of 35 mm as an optimal predictor of PTD in the second trimester (sensitivity 100 % , specificity 88 % ). 3D-TVS evaluation of the cervix in pregnancy seems to be an effective, noninvasive method for predicting PTD risk. (E-mail: severi@unisi.it)