1. MRI at UTCVM The First Months Presentation by: Silke Hecht, Dr. med. vet., DACVR, DECVDI Assistant Professor Radiology

2. Delivery and Hook-Up 04-04-08

3. MRI Setup

6. Now we needed volunteers to test the system and establish imaging parameters…

7. The First “Volunteer”

8. Normal Thoracolumbar Spine

9. The First Clinical Patient 7-year-old MC Weimaraner One year long history of bilateral hind limb weakness that had progressively worsened Recent onset seizures Plan: MRI brain +/- MRI lumbar spine

10. Neurologists eagerly awaiting results of the first scan The First Clinical Patient

11. Intracranial contrast-enhancing mass Presumptive diagnosis: Cystic meningioma The First Clinical Patient

12. Other Patients 1-year-old M Mastiff Wobbly in hind limbs since birth, progressive Hind limb paresis except when on prednisone Plan: MRI thoracolumbar spine

13. T2 FLAIR Diagnosis: Arachnoid cyst T 12/13 Good recovery after surgery

14. 7-year old Shi Tsu with neck pain Diagnosis: Intervertebral disc extrusion C3/4; Incidental finding of a brain cyst (“quadrigeminal cistern cyst”) Good recovery after surgery More Neurology Patients

15. The First Orthopedic Patient Partial rupture of the cranial cruciate ligament, degenerative joint disease, subchondral sclerosis and cyst

16. The First Oncology Patient 9-year old American Bulldog; Known MCT on back MRI performed to evaluate margins Additional smaller mass found unexpectedly

17. Arguably the cutest patient… Approximately 4 month old Black Bear (8 lb) Brought in from Appalachian Bear Center Blindness, running in circles Plan: MRI brain

19. Diagnosis: Congenital dilation of lateral ventricles (Hydrocephalus)

20. More Exotics – From Large… 2-year old F Tiger Ataxia Normal brain MRI

21. More Exotics – … to small Rabbit, few months old 1 month history of seizures Normal limited brain MRI

22. Initial Large Animal Experience 4 month old Potbellied Pig Fever (105°F) and rear leg weakness Plan: MRI lumbar spine

23. Imaging Diagnosis: Diffusely contrast enhancing areas in epaxial muscles -> Muscle biopsy: Myofiber necrosis and degeneration with secondary inflammation and regeneration Ddx: nutritional (white muscle disease), toxic, neurogenic, infectious or ischemic

24. STAY TUNED!