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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
veterinary
Evaluation of standard magnetic resonance characteristics used to differentiate neoplastic, inflammatory, and vascular brain lesions in dogs
Veterinary Radiology and Ultrasound, Volume 55, No. 4, Year 2014
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Description
Magnetic resonance (MR) imaging characteristics are commonly used to help predict intracranial disease categories in dogs, however, few large studies have objectively evaluated these characteristics. The purpose of this retrospective study was to evaluate MR characteristics that have been used to differentiate neoplastic, inflammatory, and vascular intracranial diseases in a large, multi-institutional population of dogs. Medical records from three veterinary teaching hospitals were searched over a 6-year period for dogs that had diagnostic quality brain MR scans and histologically confirmed intracranial disease. Three examiners who were unaware of histologic diagnosis independently evaluated 19 MR lesion characteristics totaling 57 possible responses. A total of 75 dogs with histologically confirmed intracranial disease were included in analyses: 51 with neoplasia, 18 with inflammatory disease, and six with cerebrovascular disease. Only strong contrast enhancement was more common in neoplasia than other disease categories. A multivariable statistical model suggested that extra-axial origin, T2-FLAIR mixed intensity, and defined lesion margins were also predictive of neoplasia. Meningeal enhancement, irregular lesion shape, and multifocal location distinguished inflammatory diseases from the other disease categories. No MR characteristics distinguished vascular lesions and these appeared most similar to neoplasia. These results differed from a previous report describing seven MR characteristics that were predictive of neoplasia in dogs and cats. Findings from the current study indicated that the high performance of MR for diagnosing canine intracranial diseases might be due to evaluator recognition of combinations of MR characteristics vs. relying on any one MR characteristic alone. © 2014 American College of Veterinary Radiology.
Authors & Co-Authors
Young, Benjamin D.
Unknown Affiliation
Fosgate, Geoffrey T.
Unknown Affiliation
Holmes, Shannon P.
Unknown Affiliation
Wolff, C. A.
Unknown Affiliation
Chen, Annie Vivian
Unknown Affiliation
Kent, Marc
Unknown Affiliation
Platt, Simon R.
Unknown Affiliation
Savage, M. Y.
Unknown Affiliation
Schatzberg, Scott J.
Unknown Affiliation
Levine, Jonathan M.
Unknown Affiliation
Statistics
Citations: 47
Authors: 10
Affiliations: 9
Identifiers
Doi:
10.1111/vru.12137
ISSN:
10588183
e-ISSN:
17408261
Study Design
Cross Sectional Study
Cohort Study