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AJNR - American Journal of Neuroradiology

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Relationship between Findings of Conventional and Contrast-Enhanced Transcranial Color-Coded Real-Time Sonography and Angiography in Patients with Basilar Artery Occlusion

Masatoshi Koga^a, Kazumi Kimura^a, Kazuo Minematsu^a and Takenori Yamaguchi^a

^a From the Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Osaka, Japan

View larger version (68K): [in a new window]   FIG 1. Anteroposterior view angiogram of the right carotid artery shows reversed basilar artery flow through collateral circulation from the carotid systems (top, arrow). Reverse basilar artery flow is shown in red with contrast-enhanced TCCS (bottom, arrow)

View larger version (83K): [in a new window]   FIG 2. Anteroposterior view angiogram of the right vertebral artery shows distal basilar artery occlusion due to cardioembolism (top, arrow). No blood supply to the basilar artery was evident on the carotid angiograms (not shown). With contrast-enhanced TCCS, no basilar artery flow was visualized (bottom, arrow).