Tags

Type your tag names separated by a space and hit enter

Intraobserver, interobserver, and intermethod agreement for results of myelography, computed tomography-myelography, and low-field magnetic resonance imaging in dogs with disk-associated wobbler syndrome.
J Am Vet Med Assoc. 2011 Jun 15; 238(12):1601-8.JA

Abstract

OBJECTIVE

To determine intraobserver, interobserver, and intermethod agreement for results of myelography, computed tomography-myelography (CTM), and low-field magnetic resonance imaging (MRI) in dogs with disk-associated wobbler syndrome (DAWS).

DESIGN

Prospective cross-sectional study.

ANIMALS

22 dogs with DAWS.

PROCEDURES

All dogs underwent myelography, CTM, and low-field MRI. Each imaging study was interpreted twice by 4 observers who were blinded to signalment and clinical information of the patients. The following variables were assessed by all 3 techniques: number, site, and direction of spinal cord compressions; narrowed intervertebral disk spaces; vertebral body abnormalities; spondylosis deformans; and abnormal articular facets. Intervertebral foraminal stenosis was assessed on CTM and MRI images. Intraobserver, interobserver, and intermethod agreement were calculated by κ and weighted κ statistics.

RESULTS

There was very good to good intraobserver agreement for most variables assessed by myelography and only moderate intraobserver agreement for most variables assessed by CTM and low-field MRI. There was moderate to fair interobserver and intermethod agreement for most variables assessed by the 3 diagnostic techniques. There was very good or good intraobserver, interobserver, or intermethod agreement for the site and direction of the worst spinal cord compression as assessed by all the imaging modalities; abnormal articular facets and intervertebral foraminal stenosis were the least reliably assessed variables, with poor interobserver agreement regardless of imaging modality used.

CONCLUSIONS AND CLINICAL RELEVANCE

There was considerable variation in image interpretation among observers and between use of various imaging modalities; these imaging techniques should be considered complementary in assessment of dogs with DAWS.

Authors+Show Affiliations

Department of Small Animal Medicine and Clinical Biology, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium. sdedecker@rvc.ac.ukNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21671815

Citation

De Decker, Steven, et al. "Intraobserver, Interobserver, and Intermethod Agreement for Results of Myelography, Computed Tomography-myelography, and Low-field Magnetic Resonance Imaging in Dogs With Disk-associated Wobbler Syndrome." Journal of the American Veterinary Medical Association, vol. 238, no. 12, 2011, pp. 1601-8.
De Decker S, Gielen IM, Duchateau L, et al. Intraobserver, interobserver, and intermethod agreement for results of myelography, computed tomography-myelography, and low-field magnetic resonance imaging in dogs with disk-associated wobbler syndrome. J Am Vet Med Assoc. 2011;238(12):1601-8.
De Decker, S., Gielen, I. M., Duchateau, L., Corzo-Menéndez, N., van Bree, H. J., Kromhout, K., Bosmans, T., & Van Ham, L. M. (2011). Intraobserver, interobserver, and intermethod agreement for results of myelography, computed tomography-myelography, and low-field magnetic resonance imaging in dogs with disk-associated wobbler syndrome. Journal of the American Veterinary Medical Association, 238(12), 1601-8. https://doi.org/10.2460/javma.238.12.1601
De Decker S, et al. Intraobserver, Interobserver, and Intermethod Agreement for Results of Myelography, Computed Tomography-myelography, and Low-field Magnetic Resonance Imaging in Dogs With Disk-associated Wobbler Syndrome. J Am Vet Med Assoc. 2011 Jun 15;238(12):1601-8. PubMed PMID: 21671815.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intraobserver, interobserver, and intermethod agreement for results of myelography, computed tomography-myelography, and low-field magnetic resonance imaging in dogs with disk-associated wobbler syndrome. AU - De Decker,Steven, AU - Gielen,Ingrid M V L, AU - Duchateau,Luc, AU - Corzo-Menéndez,Nuria, AU - van Bree,Henri J J, AU - Kromhout,Kaatje, AU - Bosmans,Tim, AU - Van Ham,Luc M L, PY - 2011/6/16/entrez PY - 2011/6/16/pubmed PY - 2011/11/10/medline SP - 1601 EP - 8 JF - Journal of the American Veterinary Medical Association JO - J. Am. Vet. Med. Assoc. VL - 238 IS - 12 N2 - OBJECTIVE: To determine intraobserver, interobserver, and intermethod agreement for results of myelography, computed tomography-myelography (CTM), and low-field magnetic resonance imaging (MRI) in dogs with disk-associated wobbler syndrome (DAWS). DESIGN: Prospective cross-sectional study. ANIMALS: 22 dogs with DAWS. PROCEDURES: All dogs underwent myelography, CTM, and low-field MRI. Each imaging study was interpreted twice by 4 observers who were blinded to signalment and clinical information of the patients. The following variables were assessed by all 3 techniques: number, site, and direction of spinal cord compressions; narrowed intervertebral disk spaces; vertebral body abnormalities; spondylosis deformans; and abnormal articular facets. Intervertebral foraminal stenosis was assessed on CTM and MRI images. Intraobserver, interobserver, and intermethod agreement were calculated by κ and weighted κ statistics. RESULTS: There was very good to good intraobserver agreement for most variables assessed by myelography and only moderate intraobserver agreement for most variables assessed by CTM and low-field MRI. There was moderate to fair interobserver and intermethod agreement for most variables assessed by the 3 diagnostic techniques. There was very good or good intraobserver, interobserver, or intermethod agreement for the site and direction of the worst spinal cord compression as assessed by all the imaging modalities; abnormal articular facets and intervertebral foraminal stenosis were the least reliably assessed variables, with poor interobserver agreement regardless of imaging modality used. CONCLUSIONS AND CLINICAL RELEVANCE: There was considerable variation in image interpretation among observers and between use of various imaging modalities; these imaging techniques should be considered complementary in assessment of dogs with DAWS. SN - 1943-569X UR - https://www.unboundmedicine.com/medline/citation/21671815/Intraobserver_interobserver_and_intermethod_agreement_for_results_of_myelography_computed_tomography_myelography_and_low_field_magnetic_resonance_imaging_in_dogs_with_disk_associated_wobbler_syndrome_ L2 - http://avmajournals.avma.org/doi/full/10.2460/javma.238.12.1601?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -