SYNDROMAL VERTIGO IDENTIFIED BY MAGNETIC-RESONANCE-IMAGING AND ANGIOGRAPHY

The advent of magnetic resonance imaging and angiography has clarified the location and vascular basis for vertigo of a syndromal type. The composite presentation of a vestibular symptom with evidence of crania l nerve or cerebellar dysfunction suggests a lesion within the pens, m edulla, or cerebellum. The location may be exactly defined by noninvas ive techniques and appropriate therapy can be initiated Clinical examp les are presented; the syndromes of vertebrobasilar artery perfusion d isorder are described, and appropriate images are illustrated for conf irmation.