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BMC Pregnancy and Childbirth
Published in: BMC Pregnancy and Childbirth 1/2015

Open Access 01-12-2015 | Research article

Agreement between transperineal ultrasound measurements and digital examinations of cervical dilatation during labor

Authors: Sigurlaug Benediktsdottir, Torbjørn M. Eggebø, Kjell Å. Salvesen

Published in: BMC Pregnancy and Childbirth | Issue 1/2015

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Abstract

Background

To compare 2D transperineal ultrasound assessment of cervical dilatation with vaginal examination and to investigate intra-observer variability of the ultrasound method.

Methods

A prospective observational study was performed at Skane University Hospital, Lund, Sweden between October 2013 and June 2014. Women with one fetus in cephalic presentation at term had the cervical dilatation assessed with ultrasound and digital vaginal examinations during labor. Inter-method agreement between ultrasound and digital examinations and intra-observer repeatability of ultrasound examinations were tested.

Results

Cervical dilatation was successfully assessed with ultrasound in 61/86 (71 %) women. The mean difference between cervical dilatation and ultrasound measurement was 0.9 cm (95 % CI 0.47–1.34). Interclass correlation coefficient (ICC) was 0.83 (95 % CI 0.72–0.90). Intra-observer repeatability was analysed in 26 women. The intra-observer ICC was 0.99 (95 % CI 0.97–0.99). The repeatability coefficient was ± 0.68 (95 % CI 0.45–0.91).

Conclusion

The mean ultrasound measurement of cervical dilatation was approximately 1 cm less than clinical assessment. The intra-observer repeatability of ultrasound measurements was high.
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Metadata
Title
Agreement between transperineal ultrasound measurements and digital examinations of cervical dilatation during labor
Authors
Sigurlaug Benediktsdottir
Torbjørn M. Eggebø
Kjell Å. Salvesen
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Pregnancy and Childbirth / Issue 1/2015
Electronic ISSN: 1471-2393
DOI
https://doi.org/10.1186/s12884-015-0704-z

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