Document Detail

Quantification of cervical elastography: a reproducibility study.
MedLine Citation:
PMID:  22173854     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To assess a new method for numerical quantification of cervical elastography during pregnancy and to evaluate the repeatability of the measurements.
METHODS: Cervical elastography was carried out twice by a single operator in 112 singleton pregnancies at a median of 21 (range, 12-40) weeks' gestation. In 50 of the cases a second operator performed another elastography measurement. The intraobserver and interobserver repeatability of measurements in different parts of the cervix were assessed using intraclass correlation coefficients with 95% CI and by Bland-Altman analysis.
RESULTS: There were no statistically significant differences in the elastography measurements made by the same and by two different observers in each area measured, except in the area that receives the force of the transducer directly. The distribution of elastographic measurements obtained in different regions of the cervix demonstrated that the external and superior parts were significantly softer than the internal and inferior parts.
CONCLUSION: It is possible to provide an objective quantification of elastographic colors in the cervix. The measurements obtained by elastography may be a mere reflection of the force being applied by the transducer to different parts of the cervix. It is too premature to suggest that the measurements of rate-of-change in tissue displacement reflect histological changes that could provide a measure of cervical ripening.
F S Molina; L F Gómez; J Florido; M C Padilla; K H Nicolaides
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Publication Detail:
Type:  Evaluation Studies; Journal Article     Date:  2012-05-22
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  39     ISSN:  1469-0705     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-05-29     Completed Date:  2012-09-28     Revised Date:  2013-07-11    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  685-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 ISUOG. Published by John Wiley & Sons, Ltd.
Maternal-Fetal Medicine Unit, Department of Obstetrics and Gynaecology, San Cecilio University Hospital (HUSC), Granada, Spain.
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MeSH Terms
Cervical Ripening*
Cervix Uteri / ultrasonography*
Elasticity Imaging Techniques / methods*
Gestational Age
Middle Aged
Observer Variation
Predictive Value of Tests
Pregnancy Trimester, Second
Pregnancy Trimester, Third
Premature Birth / ultrasonography*
Reproducibility of Results
Sensitivity and Specificity
Ultrasonography, Prenatal / methods
Young Adult
Comment In:
Ultrasound Obstet Gynecol. 2012 Nov;40(5):612; author reply 612-3   [PMID:  23168975 ]
Ultrasound Obstet Gynecol. 2013 Jun;41(6):712   [PMID:  23712888 ]
Ultrasound Obstet Gynecol. 2013 Jun;41(6):712-4   [PMID:  23712889 ]

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