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Vertebrobasilar Transcranial Color-Coded Duplex Ultrasonography: Improvement with Echo Enhancement

Erwin Stolza, Martin Nückela, Irene Mendesa,b, Tibo Gerrietsa and Manfred Kapsa

a Department of Neurology, Justus-Liebig-University, Giessen Germany
b Department of Neurology, Hospital Garcia de Orta, Pragal-Almada, Portugal



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  		FIG 1. Transforaminal transcranial color-coded duplex sonograms before (left) and after (right) application of an echo-enhancing agent. VA indicates vertebral artery; BA, basilar artery; PICA, posterior inferior cerebellar artery. Before echo enhancement, an occlusion of the intraforaminal part of the vertebral artery might have been falsely assumed.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X