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Magnetic Resonance Imaging

Julien Bogousslavsky, MD; Allan J. Fox, MD; Lewis S. Carey, MD; Simon Vinitski, PhD; Brenda Bass, BScN; John H. Noseworthy, MD; George C. Ebers, MD; Henry J. M. Barnett, MD

Arch Neurol. 1986;43(5):460-463.

Abstract
• Three patients with focal brain-stem oculomotor disturbances (nuclear sixth nerve syndrome, sixth nerve palsy, bilateral internuclear ophthalmoplegia) as a consequence of multiple sclerosis have been studied with high-volume delayed computed tomography and high-field magnetic resonance imaging. In all of them, high-volume delayed computed tomography was inconclusive in the brain stem, but magnetic resonance imaging showed an area of prolonged T1 and/or T2 in the region appropriate to the oculomotor findings. Magnetic resonance imaging is the imaging technique of choice of small plaques in the brain stem. It can considerably aid clinicotopographic correlation in multiple sclerosis.

Author Affiliations
From the Departments of Clinical Neurological Sciences (Drs Bogousslavsky, Fox, Noseworthy, Ebers, and Barnett and Ms Bass) and Diagnostic Radiology (Drs Fox, Carey, and Vinitski), University Hospital, London, Ontario. Dr Bogousslavsky is on leave from the Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.

Footnotes
Accepted for publication Sept 26, 1985.

Reprint requests to Department of Diagnostic Radiology, University Hospital, London, Ontario, Canada N6A 5A5 (Dr Fox).

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