Cargando…
Intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods
BACKGROUND: Different low-dose computed tomography (CT) pelvimetry methods can be used to evaluate the size of birth canal before delivery. CT pelvimetry might generate an acceptable low fetal radiation dose but its measurement accuracy is unknown. PURPOSE: To investigate intra- and inter-rater meas...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6560807/ https://www.ncbi.nlm.nih.gov/pubmed/31218082 http://dx.doi.org/10.1177/2058460119855187 |
_version_ | 1783426025795878912 |
---|---|
author | Phexell, Erika Åkesson, Anna Söderberg, Marcus Bolejko, Anetta |
author_facet | Phexell, Erika Åkesson, Anna Söderberg, Marcus Bolejko, Anetta |
author_sort | Phexell, Erika |
collection | PubMed |
description | BACKGROUND: Different low-dose computed tomography (CT) pelvimetry methods can be used to evaluate the size of birth canal before delivery. CT pelvimetry might generate an acceptable low fetal radiation dose but its measurement accuracy is unknown. PURPOSE: To investigate intra- and inter-rater measurement reliability of cross-sectional and two spiral CT pelvimetry methods: standard spiral and short spiral. MATERIAL AND METHODS: Ten individuals (age ≥60 years, body mass index ≥30 kg/m(2)) having a CT scan of the abdomen also had CT pelvimetry scans. Three radiologists made independent measurements of each pelvimetry method on two occasions and also in consensus for a reference pelvimetry computed from the standard-dose CT scan of the abdomen. Inter- and intra-rater reliability was analyzed by intraclass correlation coefficient. RESULTS: Measurements in the short spiral pelvimetry demonstrated excellent intra- and inter-rater reliability, intraclass correlation coefficient ≥0.93, and good to excellent 95% confidence interval 0.87–0.99. Corresponding results of the standard spiral and cross-sectional pelvimetry showed good to excellent intraclass correlation coefficient ≥0.85 and ≥0.76, and 95% confidence interval was least good and moderate 0.73–0.98 and 0.59–0.97, respectively. Intraclass correlation coefficient between reference pelvimetry and other CT methods showed analogous results. CONCLUSION: The short spiral pelvimetry demonstrated high and best reliability in comparison to other methods. Standard spiral method showed also good measurement reliability but the short spiral pelvimetry generates lower fetal radiation dose. This method might be suitable for measurements at narrow pelvis. Patient acceptance and attitude to CT pelvimetry should be investigated. |
format | Online Article Text |
id | pubmed-6560807 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-65608072019-06-19 Intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods Phexell, Erika Åkesson, Anna Söderberg, Marcus Bolejko, Anetta Acta Radiol Open Research BACKGROUND: Different low-dose computed tomography (CT) pelvimetry methods can be used to evaluate the size of birth canal before delivery. CT pelvimetry might generate an acceptable low fetal radiation dose but its measurement accuracy is unknown. PURPOSE: To investigate intra- and inter-rater measurement reliability of cross-sectional and two spiral CT pelvimetry methods: standard spiral and short spiral. MATERIAL AND METHODS: Ten individuals (age ≥60 years, body mass index ≥30 kg/m(2)) having a CT scan of the abdomen also had CT pelvimetry scans. Three radiologists made independent measurements of each pelvimetry method on two occasions and also in consensus for a reference pelvimetry computed from the standard-dose CT scan of the abdomen. Inter- and intra-rater reliability was analyzed by intraclass correlation coefficient. RESULTS: Measurements in the short spiral pelvimetry demonstrated excellent intra- and inter-rater reliability, intraclass correlation coefficient ≥0.93, and good to excellent 95% confidence interval 0.87–0.99. Corresponding results of the standard spiral and cross-sectional pelvimetry showed good to excellent intraclass correlation coefficient ≥0.85 and ≥0.76, and 95% confidence interval was least good and moderate 0.73–0.98 and 0.59–0.97, respectively. Intraclass correlation coefficient between reference pelvimetry and other CT methods showed analogous results. CONCLUSION: The short spiral pelvimetry demonstrated high and best reliability in comparison to other methods. Standard spiral method showed also good measurement reliability but the short spiral pelvimetry generates lower fetal radiation dose. This method might be suitable for measurements at narrow pelvis. Patient acceptance and attitude to CT pelvimetry should be investigated. SAGE Publications 2019-06-11 /pmc/articles/PMC6560807/ /pubmed/31218082 http://dx.doi.org/10.1177/2058460119855187 Text en © The Foundation Acta Radiologica 2019 http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Research Phexell, Erika Åkesson, Anna Söderberg, Marcus Bolejko, Anetta Intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods |
title | Intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods |
title_full | Intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods |
title_fullStr | Intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods |
title_full_unstemmed | Intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods |
title_short | Intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods |
title_sort | intra- and inter-rater reliability in a comparative study of cross-sectional and spiral computed tomography pelvimetry methods |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6560807/ https://www.ncbi.nlm.nih.gov/pubmed/31218082 http://dx.doi.org/10.1177/2058460119855187 |
work_keys_str_mv | AT phexellerika intraandinterraterreliabilityinacomparativestudyofcrosssectionalandspiralcomputedtomographypelvimetrymethods AT akessonanna intraandinterraterreliabilityinacomparativestudyofcrosssectionalandspiralcomputedtomographypelvimetrymethods AT soderbergmarcus intraandinterraterreliabilityinacomparativestudyofcrosssectionalandspiralcomputedtomographypelvimetrymethods AT bolejkoanetta intraandinterraterreliabilityinacomparativestudyofcrosssectionalandspiralcomputedtomographypelvimetrymethods |