Cargando…

Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography

BACKGROUND: Canine intervertebral disc degeneration can lead to intervertebral disc disease. Mild degenerative changes in the structure of the canine intervertebral disc can be identified in magnetic resonance images, whereas these changes are not visible in computed tomographic images. Therefore, o...

Descripción completa

Detalles Bibliográficos
Autores principales: Harder, Lisa K., Galindo-Zamora, Vladimir, Beyerbach, Martin, Nolte, Ingo, Wefstaedt, Patrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4642649/
https://www.ncbi.nlm.nih.gov/pubmed/26566432
http://dx.doi.org/10.1186/s13620-015-0054-1
_version_ 1782400398129102848
author Harder, Lisa K.
Galindo-Zamora, Vladimir
Beyerbach, Martin
Nolte, Ingo
Wefstaedt, Patrick
author_facet Harder, Lisa K.
Galindo-Zamora, Vladimir
Beyerbach, Martin
Nolte, Ingo
Wefstaedt, Patrick
author_sort Harder, Lisa K.
collection PubMed
description BACKGROUND: Canine intervertebral disc degeneration can lead to intervertebral disc disease. Mild degenerative changes in the structure of the canine intervertebral disc can be identified in magnetic resonance images, whereas these changes are not visible in computed tomographic images. Therefore, one aim of this study was to detect whether colour-coded computed tomography enhances the visibility of mild degenerative changes in the canine disc structure compared to non-contrast computed tomography. Furthermore, the study aimed to detect if intervertebral disc degeneration could be classified with a higher reliability in colour-coded images than in non-contrast images. RESULTS: Computed tomographic image studies of 144 canine intervertebral discs were coloured using three different lookup tables. Canine intervertebral disc degeneration was evaluated by three observers using a 5-grade classification system and compared to the evaluation of non-contrast CT and MRI images. A moderate to almost perfect intraobserver and a moderate to substantial interobserver agreement were found depending on the used colour code. On comparing non-contrast and colour-coded CT significant differences were found by one observer only. Significant differences in evaluation were found in grading intervertebral disc degeneration in MRI and colour-coded CT. CONCLUSIONS: Intervertebral disc degeneration could not be classified with a higher reliability on colour-coded images compared to non-contrast images. Furthermore, colour-coded CT did not enhance the visibility of mild degenerative changes in disc structure compared to non-contrast CT. However, the better intraobserver agreement and the subjective impression of the observers highlighted that the usage of colour encoded CT data sets with a wide range of tonal values of few primary and secondary colours may facilitate evaluation.
format Online
Article
Text
id pubmed-4642649
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher BioMed Central
record_format MEDLINE/PubMed
spelling pubmed-46426492015-11-13 Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography Harder, Lisa K. Galindo-Zamora, Vladimir Beyerbach, Martin Nolte, Ingo Wefstaedt, Patrick Ir Vet J Research BACKGROUND: Canine intervertebral disc degeneration can lead to intervertebral disc disease. Mild degenerative changes in the structure of the canine intervertebral disc can be identified in magnetic resonance images, whereas these changes are not visible in computed tomographic images. Therefore, one aim of this study was to detect whether colour-coded computed tomography enhances the visibility of mild degenerative changes in the canine disc structure compared to non-contrast computed tomography. Furthermore, the study aimed to detect if intervertebral disc degeneration could be classified with a higher reliability in colour-coded images than in non-contrast images. RESULTS: Computed tomographic image studies of 144 canine intervertebral discs were coloured using three different lookup tables. Canine intervertebral disc degeneration was evaluated by three observers using a 5-grade classification system and compared to the evaluation of non-contrast CT and MRI images. A moderate to almost perfect intraobserver and a moderate to substantial interobserver agreement were found depending on the used colour code. On comparing non-contrast and colour-coded CT significant differences were found by one observer only. Significant differences in evaluation were found in grading intervertebral disc degeneration in MRI and colour-coded CT. CONCLUSIONS: Intervertebral disc degeneration could not be classified with a higher reliability on colour-coded images compared to non-contrast images. Furthermore, colour-coded CT did not enhance the visibility of mild degenerative changes in disc structure compared to non-contrast CT. However, the better intraobserver agreement and the subjective impression of the observers highlighted that the usage of colour encoded CT data sets with a wide range of tonal values of few primary and secondary colours may facilitate evaluation. BioMed Central 2015-11-11 /pmc/articles/PMC4642649/ /pubmed/26566432 http://dx.doi.org/10.1186/s13620-015-0054-1 Text en © Harder et al. 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Harder, Lisa K.
Galindo-Zamora, Vladimir
Beyerbach, Martin
Nolte, Ingo
Wefstaedt, Patrick
Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography
title Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography
title_full Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography
title_fullStr Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography
title_full_unstemmed Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography
title_short Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography
title_sort evaluation of canine intervertebral disc degeneration in colour-coded computed tomography
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4642649/
https://www.ncbi.nlm.nih.gov/pubmed/26566432
http://dx.doi.org/10.1186/s13620-015-0054-1
work_keys_str_mv AT harderlisak evaluationofcanineintervertebraldiscdegenerationincolourcodedcomputedtomography
AT galindozamoravladimir evaluationofcanineintervertebraldiscdegenerationincolourcodedcomputedtomography
AT beyerbachmartin evaluationofcanineintervertebraldiscdegenerationincolourcodedcomputedtomography
AT nolteingo evaluationofcanineintervertebraldiscdegenerationincolourcodedcomputedtomography
AT wefstaedtpatrick evaluationofcanineintervertebraldiscdegenerationincolourcodedcomputedtomography