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Magnetic resonance imaging enhancement of intervertebral disc disease in 30 dogs following chemical fat saturation
Author(s) -
Freeman A. C.,
Platt S. R.,
Kent M.,
Howerth E.,
Holmes S. P.
Publication year - 2012
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.2011.01174.x
Subject(s) - medicine , magnetic resonance imaging , contrast enhancement , gadolinium , pathological , intervertebral disc , degenerative disc disease , nuclear medicine , radiology , pathology , materials science , metallurgy , lumbar
O bjective : To describe the patterns of enhancement of extradural intervertebral disc on chemically fat saturated gadolinium‐enhanced magnetic resonance images and to investigate the clinical and pathological associations with enhancement. M ethods : Medical records and magnetic resonance images were reviewed from 30 dogs with histopathologically confirmed disc disease and enhancement on a T1‐weighted postcontrast fat saturated sequence. R esults : Median duration of neurological signs was 4 days and the most common grade of severity was II, seen in 46·6% of dogs. Homogeneous, heterogeneous and peripheral patterns of disc enhancement were described, with peripheral enhancement most commonly identified (57% of dogs). There were no clinical or pathological differences between the dogs with each of the patterns. The mean signal intensity of a region of interest within the extruded disc material and contrast‐to‐noise ratio of the disc material were significantly higher on postcontrast T1‐weighted fat saturated images (P=<0·0001 each). C linical S ignificance : The use of fat saturated gadolinium‐enhanced magnetic resonance imaging can detect enhancement of extradural disc material. Patterns of enhancement are not associated with the clinical presentation or pathological features.