MR Imaging Of Diseases From Common Central Nervous System In Dogs And Cats

In the past 20 years,the veterinary industry has developed rapidly,and diagnostic methods have become increasingly advanced.The outstanding soft tissue imaging capabilities of MRI make neurological diagnosis a breakthrough in imaging.For many years,myelography of X-ray was the only technology for visual assessment of spinal cord compression lesions,but myelography replaced compared to low-risk MRI.MRI is mainly used in the diagnosis of canine and feline central nervous system diseases in veterinary clinic.Because of the expensive equipment,it has not been widely used in veterinary clinic.Therefore,this article has conducted studies on MRI diagnosis of central nervous system diseases in dogs and cats.The purpose of this research is to provide reference for magnetic resonance imaging in veterinary clinic.In the experiment,138 cases of central nervous system diseases were scanned using the VET-MR 0.3 T animal-specific,matching Head coil,and Spine coil.Before MRI scans,basic information was collected for physical examinations and neurological examinations and blood test.Spin echo sequence(SE),fast spin echo sequence(FSE),short TI inversion recovery sequence(STIR),fliud attenuated inversion recovery sequense(FLAIR),and contrast enhancement sequence(Gd-TIWI)were used in this study.Glucosamine dimeglumine(0.1 mmol/kg)was used for contrast-enhanced sequence by intravenous injection.The scanning section includes a cross-section,a sagittal plane,and a dorsal surface.The dorso-abdominal position is used for the brain scan.When the spinal cord is scanned,the position is selected according to the scanning position and the coil.Among the subjects,there were 64 brain seans and 74 spinal spine scans.Six common dog and eat intracranial diseases were summarized.They were hydroeephalus,canine necrotizing encephalitis,neurogeric feline infectious peritonitis,and canine Infectious encephalitis,secondary infectious encephalitis by otitis media,cerebellar infarction.Five common canine spinal cord diseases,including Hansen type Ⅰ disc herniation,Hansen typeⅡ disc herniation,lumbar stenosis,atlantoaxial subluxation and fibrocartilage embolism.A total of 14 typical cases were selected for comprehensive analysis and diagnosis combined with interviews,clinical examinations,laboratory tests,and MRI features.At the same time,according to the magnetic resonance imaging of 138 cases and related references,the diagnostic procedures for common intracranial and spinal cord diseases in dogs and cats were initially drafted.