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dc.contributor.authorWiafe, Yaw Amo
dc.contributor.authorWhitehead, Bill
dc.contributor.authorVenables, Heather
dc.contributor.authorOdoi, Alexander T.
dc.date.accessioned2018-02-09T16:24:38Z
dc.date.available2018-02-09T16:24:38Z
dc.date.issued2018-02-01
dc.identifier.citationWiafe, Y. A. et al (2018) 'Sonographic parameters for diagnosing fetal head engagement during labour', Ultrasound, 26 (1):16.en
dc.identifier.issn1742271X
dc.identifier.doi10.1177/1742271X18755080
dc.identifier.urihttp://hdl.handle.net/10545/622120
dc.description.abstractThe purpose of this study was to investigate the diagnostic performance of the head–perineum distance, angle of progression, and the head–symphysis distance as intrapartum ultrasound parameters in the determination of an engaged fetal head. Two hundred and one women in labour underwent both ultrasound and digital vaginal examination in the estimation of fetal head station. The transperineal ultrasound measured head–perineum distance, angle of progression, and head–symphysis distance for values correlating with digital vaginal examination head station. Using station 0 as the minimum level of head engagement, correlating cutoff values for head–perineum distance, angle of progression, and head–symphysis distance were obtained. Receiver operating characteristics were used in determining the diagnostic performance of these cut-off values for the detection of fetal head engagement. With head–perineum distance of 3.6 cm the sensitivity and specificity of sonographic determination of engaged fetal head were 78.7 and 72.3%, respectively. A head–symphysis distance of 2.8 cm also had sensitivity and specificity of 74.5 and 70.8%, respectively, in determining engagement, whilst an angle of progression of 101 was consistent with engagement by digital vaginal examination with 68.1% sensitivity and 68.2% specificity. Ultrasound shows high diagnostic performance in determining engaged fetal head at a head–perineum distance of 3.6 cm, head–symphysis distance of 2.8 cm, and angle of progression of 101.
dc.description.sponsorshipN/Aen
dc.language.isoenen
dc.publisherSageen
dc.relation.urlhttp://journals.sagepub.com/doi/10.1177/1742271X18755080en
dc.rightsArchived with thanks to Ultrasounden
dc.subjectAngle of progressionen
dc.subjectHead–perineum distanceen
dc.subjectHead–symphysis distanceen
dc.subjectEngaged fetal headen
dc.subjectChild labouren
dc.subjectBirthen
dc.titleSonographic parameters for diagnosing fetal head engagement during labour.en
dc.typeArticleen
dc.identifier.eissn17431344
dc.contributor.departmentUniversity of Derbyen
dc.contributor.departmentKwame Nkrumah University of Science and Technologen
dc.identifier.journalUltrasounden
dc.contributor.institutionDepartment of Nursing, Radiography and Healthcare, University of Derby, Derby, UK
dc.contributor.institutionDepartment of Nursing, Radiography and Healthcare, University of Derby, Derby, UK
dc.contributor.institutionDepartment of Nursing, Radiography and Healthcare, University of Derby, Derby, UK
dc.contributor.institutionDepartment of Obstetrics and Gynaecology, School of Medical Sciences, Kwame Nkrumah University of Science and Technology and Komfo Anokye Teaching Hospital, Kumasi, Ghana
dcterms.dateAccepted2017-11-10
refterms.dateFOA2019-02-07T00:00:00Z
html.description.abstractThe purpose of this study was to investigate the diagnostic performance of the head–perineum distance, angle of progression, and the head–symphysis distance as intrapartum ultrasound parameters in the determination of an engaged fetal head. Two hundred and one women in labour underwent both ultrasound and digital vaginal examination in the estimation of fetal head station. The transperineal ultrasound measured head–perineum distance, angle of progression, and head–symphysis distance for values correlating with digital vaginal examination head station. Using station 0 as the minimum level of head engagement, correlating cutoff values for head–perineum distance, angle of progression, and head–symphysis distance were obtained. Receiver operating characteristics were used in determining the diagnostic performance of these cut-off values for the detection of fetal head engagement. With head–perineum distance of 3.6 cm the sensitivity and specificity of sonographic determination of engaged fetal head were 78.7 and 72.3%, respectively. A head–symphysis distance of 2.8 cm also had sensitivity and specificity of 74.5 and 70.8%, respectively, in determining engagement, whilst an angle of progression of 101 was consistent with engagement by digital vaginal examination with 68.1% sensitivity and 68.2% specificity. Ultrasound shows high diagnostic performance in determining engaged fetal head at a head–perineum distance of 3.6 cm, head–symphysis distance of 2.8 cm, and angle of progression of 101.


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