Reproducibility of the anorectal angle with transperineal ultrasound

Background: The anorectal angle (ARA) has been assessed with different imaging methods and its measurement has traditionally been based on defecography or magnetic resonance studies. Different ultrasound methodologies have also been used for ARA assessment and have been validated as alternatives for...

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Autores: García Mejido, José Antonio, García Pombo, S., Fernández-Conde, C., Fernández Palacín, Ana, Borrero González, Carlota, Sáinz Bueno, José Antonio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/147260
Acceso en línea:https://hdl.handle.net/11441/147260
https://doi.org/10.21037/qims-22-714
Access Level:acceso abierto
Palabra clave:Anorectal angle (ARA)
Levator ani muscle (LAM)
Avulsion
Ultrasound
Transperineal ultrasound
Pelvic floor
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spelling Reproducibility of the anorectal angle with transperineal ultrasoundGarcía Mejido, José AntonioGarcía Pombo, S.Fernández-Conde, C.Fernández Palacín, AnaBorrero González, CarlotaSáinz Bueno, José AntonioAnorectal angle (ARA)Levator ani muscle (LAM)AvulsionUltrasoundTransperineal ultrasoundPelvic floorBackground: The anorectal angle (ARA) has been assessed with different imaging methods and its measurement has traditionally been based on defecography or magnetic resonance studies. Different ultrasound methodologies have also been used for ARA assessment and have been validated as alternatives for the ARA measurement, such as three-dimensional (3D) endovaginal ultrasound and 3D transperineal ultrasound. 3D transperineal ultrasound does not require the introduction of ultrasound transducers inside the anal canal. Therefore, it is reasonable to think that the use of transperineal ultrasound can provide more reproducible ARA measurements, something that has not been established by 3D endovaginal probe or defecography. Our objective is to determine the intraobserver and interobserver variability of transperineal ultrasound for the assessment of ARA. Methods: A retrospective observational study was performed with 40 patients. The study of the ARA was performed from the mid-sagittal plane (at rest, Valsalva and maximum contraction), visualizing the anorectal canal, the anorectal junction and the rectal ampulla. ARA measurements were performed initially by explorer 1 (E1), subsequently by explorer 2 (E2) and finally again by E1. Intraobserver and interobserver variability was calculated by calculating the intraclass correlation coefficient (ICC) with 95% confidence interval (CI). Results: Intraobserver variability was excellent for all measurements of the ARA at rest, Valsalva and maximal contraction, with ICC ranging from 0.968 to 0.975. Interobserver variability was also superb for all measurements of the ARA at rest, Valsalva and maximal contraction, with ICC ranging from 0.971 to 0.979. Conclusions: Intraobserver and interobserver variability were excellent for the ARA measurements by transperineal ultrasound.AME PUBL COCirugíaMedicina Preventiva y Salud Pública2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/147260https://doi.org/10.21037/qims-22-714reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésQUANTITATIVE IMAGING IN MEDICINE AND SURGERY, 13 (3), 1664-1671.https://qims.amegroups.com/article/view/107454/htmlinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1472602026-06-17T12:51:07Z
dc.title.none.fl_str_mv Reproducibility of the anorectal angle with transperineal ultrasound
title Reproducibility of the anorectal angle with transperineal ultrasound
spellingShingle Reproducibility of the anorectal angle with transperineal ultrasound
García Mejido, José Antonio
Anorectal angle (ARA)
Levator ani muscle (LAM)
Avulsion
Ultrasound
Transperineal ultrasound
Pelvic floor
title_short Reproducibility of the anorectal angle with transperineal ultrasound
title_full Reproducibility of the anorectal angle with transperineal ultrasound
title_fullStr Reproducibility of the anorectal angle with transperineal ultrasound
title_full_unstemmed Reproducibility of the anorectal angle with transperineal ultrasound
title_sort Reproducibility of the anorectal angle with transperineal ultrasound
dc.creator.none.fl_str_mv García Mejido, José Antonio
García Pombo, S.
Fernández-Conde, C.
Fernández Palacín, Ana
Borrero González, Carlota
Sáinz Bueno, José Antonio
author García Mejido, José Antonio
author_facet García Mejido, José Antonio
García Pombo, S.
Fernández-Conde, C.
Fernández Palacín, Ana
Borrero González, Carlota
Sáinz Bueno, José Antonio
author_role author
author2 García Pombo, S.
Fernández-Conde, C.
Fernández Palacín, Ana
Borrero González, Carlota
Sáinz Bueno, José Antonio
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Cirugía
Medicina Preventiva y Salud Pública
dc.subject.none.fl_str_mv Anorectal angle (ARA)
Levator ani muscle (LAM)
Avulsion
Ultrasound
Transperineal ultrasound
Pelvic floor
topic Anorectal angle (ARA)
Levator ani muscle (LAM)
Avulsion
Ultrasound
Transperineal ultrasound
Pelvic floor
description Background: The anorectal angle (ARA) has been assessed with different imaging methods and its measurement has traditionally been based on defecography or magnetic resonance studies. Different ultrasound methodologies have also been used for ARA assessment and have been validated as alternatives for the ARA measurement, such as three-dimensional (3D) endovaginal ultrasound and 3D transperineal ultrasound. 3D transperineal ultrasound does not require the introduction of ultrasound transducers inside the anal canal. Therefore, it is reasonable to think that the use of transperineal ultrasound can provide more reproducible ARA measurements, something that has not been established by 3D endovaginal probe or defecography. Our objective is to determine the intraobserver and interobserver variability of transperineal ultrasound for the assessment of ARA. Methods: A retrospective observational study was performed with 40 patients. The study of the ARA was performed from the mid-sagittal plane (at rest, Valsalva and maximum contraction), visualizing the anorectal canal, the anorectal junction and the rectal ampulla. ARA measurements were performed initially by explorer 1 (E1), subsequently by explorer 2 (E2) and finally again by E1. Intraobserver and interobserver variability was calculated by calculating the intraclass correlation coefficient (ICC) with 95% confidence interval (CI). Results: Intraobserver variability was excellent for all measurements of the ARA at rest, Valsalva and maximal contraction, with ICC ranging from 0.968 to 0.975. Interobserver variability was also superb for all measurements of the ARA at rest, Valsalva and maximal contraction, with ICC ranging from 0.971 to 0.979. Conclusions: Intraobserver and interobserver variability were excellent for the ARA measurements by transperineal ultrasound.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/147260
https://doi.org/10.21037/qims-22-714
url https://hdl.handle.net/11441/147260
https://doi.org/10.21037/qims-22-714
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv QUANTITATIVE IMAGING IN MEDICINE AND SURGERY, 13 (3), 1664-1671.
https://qims.amegroups.com/article/view/107454/html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv AME PUBL CO
publisher.none.fl_str_mv AME PUBL CO
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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