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Agreement and repeatability of linear vertebral body and canal measurements using computed tomography (CT) and low field magnetic resonance imaging (MRI)

Steven De Decker UGent, Ingrid Gielen UGent, Luc Duchateau UGent, Ingeborgh Polis UGent, Henri van Bree UGent and Luc Van Ham UGent (2010) VETERINARY SURGERY. 39(1). p.28-34
abstract
Objective : To evaluate agreement and repeatability of vertebral column measurements using computed tomography (CT) and magnetic resonance imaging (MRI). Study Design : Retrospective observational study. Animals : Dogs (n=18) with disc associated wobbler syndrome; Dog cadavers (n=3). Methods : Five measurements of the 5th cervical vertebra were performed: vertebral body length (VBL), vertebral canal height (VCH), vertebral body height (VBH), vertebral canal width (VCW), and vertebral body width (VBW). Measurements were performed independently twice by 2 observers. Bland-Altman plots were created to evaluate agreement. Cadaveric vertebrae with soft tissue removed had the same variables and actual dimensions measured. Results : The largest discrepancy between CT and MRI measurement was for VBL (mean difference +/- SD=1.262 mm +/- 1.245; P <.001), with the difference for all the other variables being acceptable. The 1st measurement was significantly higher than the 2nd only for VBL using CT (mean difference=0.476 mm +/- 1.120; P=.009), with all other variables having acceptable differences. Mean difference for all measurements between 2 observers was small, except for VBL using CT (mean difference=0.762 mm +/- 1.042; P <.001). Only the difference for VBL between CT and cadaver specimens was statistically significant. Conclusions : Our results suggest high repeatability and good agreement for most vertebral measurements of interest. VBL measurement using CT was considered problematic. Clinical Relevance : Provided limitations are understood, linear measurements of vertebral dimensions from CT and MRI images can be used clinically.
Please use this url to cite or link to this publication:
author
organization
alternative title
Agreement and repeatability of linear vertebral body and canal measurements using computed tomography and low field magnetic resonance imaging
year
type
journalArticle (original)
publication status
published
subject
keyword
PRINCIPLES, SPINAL-CORD COMPRESSION, RESOLUTION, DOGS
journal title
VETERINARY SURGERY
Vet. Surg.
volume
39
issue
1
pages
28 - 34
Web of Science type
Article
Web of Science id
000273398400005
JCR category
VETERINARY SCIENCES
JCR impact factor
1.437 (2010)
JCR rank
33/145 (2010)
JCR quartile
1 (2010)
ISSN
0161-3499
DOI
10.1111/j.1532-950X.2009.00559.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
763293
handle
http://hdl.handle.net/1854/LU-763293
date created
2009-10-15 13:11:30
date last changed
2015-02-06 10:17:28
@article{763293,
  abstract     = {Objective : To evaluate agreement and repeatability of vertebral column measurements using computed tomography (CT) and magnetic resonance imaging (MRI).
Study Design : Retrospective observational study.
Animals : Dogs (n=18) with disc associated wobbler syndrome; Dog cadavers (n=3).
Methods : Five measurements of the 5th cervical vertebra were performed: vertebral body length (VBL), vertebral canal height (VCH), vertebral body height (VBH), vertebral canal width (VCW), and vertebral body width (VBW). Measurements were performed independently twice by 2 observers. Bland-Altman plots were created to evaluate agreement. Cadaveric vertebrae with soft tissue removed had the same variables and actual dimensions measured.
Results : The largest discrepancy between CT and MRI measurement was for VBL (mean difference +/- SD=1.262 mm +/- 1.245; P {\textlangle}.001), with the difference for all the other variables being acceptable. The 1st measurement was significantly higher than the 2nd only for VBL using CT (mean difference=0.476 mm +/- 1.120; P=.009), with all other variables having acceptable differences. Mean difference for all measurements between 2 observers was small, except for VBL using CT (mean difference=0.762 mm +/- 1.042; P {\textlangle}.001). Only the difference for VBL between CT and cadaver specimens was statistically significant.
Conclusions : Our results suggest high repeatability and good agreement for most vertebral measurements of interest. VBL measurement using CT was considered problematic.
Clinical Relevance : Provided limitations are understood, linear measurements of vertebral dimensions from CT and MRI images can be used clinically.},
  author       = {De Decker, Steven and Gielen, Ingrid and Duchateau, Luc and Polis, Ingeborgh and van Bree, Henri and Van Ham, Luc},
  issn         = {0161-3499},
  journal      = {VETERINARY SURGERY},
  keyword      = {PRINCIPLES,SPINAL-CORD COMPRESSION,RESOLUTION,DOGS},
  language     = {eng},
  number       = {1},
  pages        = {28--34},
  title        = {Agreement and repeatability of linear vertebral body and canal measurements using computed tomography (CT) and low field magnetic resonance imaging (MRI)},
  url          = {http://dx.doi.org/10.1111/j.1532-950X.2009.00559.x},
  volume       = {39},
  year         = {2010},
}

Chicago
De Decker, Steven, Ingrid Gielen, Luc Duchateau, Ingeborgh Polis, Henri van Bree, and Luc Van Ham. 2010. “Agreement and Repeatability of Linear Vertebral Body and Canal Measurements Using Computed Tomography (CT) and Low Field Magnetic Resonance Imaging (MRI).” Veterinary Surgery 39 (1): 28–34.
APA
De Decker, Steven, Gielen, I., Duchateau, L., Polis, I., van Bree, H., & Van Ham, L. (2010). Agreement and repeatability of linear vertebral body and canal measurements using computed tomography (CT) and low field magnetic resonance imaging (MRI). VETERINARY SURGERY, 39(1), 28–34.
Vancouver
1.
De Decker S, Gielen I, Duchateau L, Polis I, van Bree H, Van Ham L. Agreement and repeatability of linear vertebral body and canal measurements using computed tomography (CT) and low field magnetic resonance imaging (MRI). VETERINARY SURGERY. 2010;39(1):28–34.
MLA
De Decker, Steven, Ingrid Gielen, Luc Duchateau, et al. “Agreement and Repeatability of Linear Vertebral Body and Canal Measurements Using Computed Tomography (CT) and Low Field Magnetic Resonance Imaging (MRI).” VETERINARY SURGERY 39.1 (2010): 28–34. Print.