Document Detail

Comparison of transperineal and transvaginal sonography in predicting preterm delivery.
MedLine Citation:
PMID:  15124188     Owner:  NLM     Status:  MEDLINE    
PURPOSE: A major advantage of transperineal sonography (TPUS) is its ability to evaluate the cervix without causing any distortion. This study was performed to compare transvaginal sonography (TVUS) and TPUS at 24 weeks of gestation in predicting preterm delivery in low-risk pregnancy. METHODS: Three hundred fifty-seven pregnant women underwent TVUS and TPUS at 24 weeks of gestation. The relationship between cervical length and preterm delivery was assessed. Accuracy values of TVUS and TPUS at 24 weeks of gestation were compared in predicting preterm delivery. RESULTS: Preterm delivery (before 36 weeks of gestation) occurred in 22 pregnancies (6.2%). Mean cervical lengths measured by TVUS and TPUS were significantly different in preterm and term delivery groups (P < 0.05). Areas under the curves were 0.801 and 0.857 for the transvaginal and transperineal measurements, respectively. The coefficient of correlation between the transvaginal and transperineal cervical length measurements was 0.83. TPUS had a sensitivity of 77% in predicting preterm delivery, with a false-positive rate of 17% and a relative risk of 4.5 at the 32.5-mm cutoff value. CONCLUSIONS: When the cervix is well visualized, TPUS can predict preterm delivery as accurately as TVUS.
Gurkan Yazici; Akgun Yildiz; M Bulent Tiras; Murat Arslan; Arzu Kanik; Utku Oz
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of clinical ultrasound : JCU     Volume:  32     ISSN:  0091-2751     ISO Abbreviation:  J Clin Ultrasound     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-05-04     Completed Date:  2004-08-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401663     Medline TA:  J Clin Ultrasound     Country:  United States    
Other Details:
Languages:  eng     Pagination:  225-30     Citation Subset:  IM    
Copyright Information:
Copyright 2004 Wiley Periodicals, Inc.
Department of Gynecology and Obstetrics, Faculty of Medicine, Mersin University, Zeytinlibahce, Mersin, Turkey.
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MeSH Terms
Cervix Uteri / ultrasonography*
Obstetric Labor, Premature / ultrasonography*
Predictive Value of Tests
Sensitivity and Specificity
Ultrasonography, Prenatal / methods*

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