1. Division of Diagnostic Imaging, Faculty of Veterinary Medicine Utrecht University Utrecht the Netherlands
2. Equine Clinic Veterinary Centre Someren Someren the Netherlands
3. Department of Equine Sciences, Faculty of Veterinary Medicine Utrecht University Utrecht the Netherlands
4. Department of Surgery and Anaesthesiology of Domestic Animals, Faculty of Veterinary Medicine Ghent University Merelbeke Belgium
5. Department of Farm Animal Health Utrecht the Netherlands