• Eymeric Gomes, Christophe Degueurce, Yannick Ruel, Ruth Dennis, and Dominique Begon.
• Department of Radiology, Ecole Nationale Vétérinaire d'Alfort, 7, Avenue du General de Gaulle, 94700 Maisons-Alfort, France. eymericgomes@gmail.com
• Vet Radiol Ultrasound. 2009 Jul 1; 50 (4): 398-403.

AbstractMagnetic resonance (MR) images of the brain of four normal cats were reviewed retrospectively to assess the emergence and course of the cranial nerves (CNs). Two-millimeter-thick images were obtained in transverse, sagittal, and dorsal planes using a 1.5 T unit. CN skull foramina, as anatomic landmarks for MR imaging, were identified by computed tomography performed on an isolated cat skull using thin wire within each skull foramen. Thin slice (1 mm slice thickness) images were obtained with a high-resolution bone filter scan protocol. The origins of CNs II, V, VII, and VIII and the group of IX, X, XI, and XII could be identified. The pathway and proximal divisions of CNs V were described. CNs III, IV, and VI were not distinguished from each other but could be seen together in the orbital fissure. CN V was characterized by slight contrast enhancement.

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