Clinical and Diagnostic Imaging Features of Brain Herniation in Dogs and Cats.

摘要: Background Quantification of brain herniation on MRI and its immediate clinical implications are poorly described. Objectives Define the normal position caudal fossa structures MRIs in dogs cats utilizing morphometry, compare this to with transtentorial (CTH), foramen magnum (FMH) or both identified MRI, investigate associations between severity, signs, 24-hour outcome. Animals Ninety-two controls (66 dogs, 26 cats), 119 cases (88 31 cats). Methods Retrospective case series. The database was searched for anatomy herniation. Morphometry established TTX (transtentorial rostroventral cerebellum) quantify CTH FMX (caudoventral cerebellum magnum) FMH. Measurements were compared controls. Correlations specific variables outcome investigated. Results Measurements medium/large control versus small dog cat significantly different (P < .001, TTX: −0.46, −0.305, −0.3, FMX: 0.695, 0.27, 0.25, respectively). 119/1564 (7.6%) that underwent imaging had FMH (P < .001). 67/89 (75%) supratentorial lesions no signs directly attributable 71/119 (60%) a anesthetic recovery. associated survival (P < .001). Conclusions importance Brain can be quantified MRI. Clinical to brain commonly absent, more severe based is worse short-term outcome.