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AJNR - American Journal of Neuroradiology

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Contrast-Enhanced Three-Dimensional Transcranial Color-Coded Sonography of Intracranial Stenoses

Christof Klötzsch^a, Alessandro Bozzato^a, Gero Lammers^a, Michael Mull^b and Johannes Noth^a

^a Department of Neurology, Universitätsklinikum der Rheinisch-Westfälischen Technischen Hochschule Aachen, Germany
^b Department of Neuroradiology, Universitätsklinikum der Rheinisch-Westfälischen Technischen Hochschule Aachen, Germany

View larger version (47K): [in a new window]   FIG 1. Anteroposterior images of an intracranial stenosis. A, 3D-PDI image shows the circle of Willis with a severe stenosis (arrow) in the MCA. B, Angiogram confirms a severe stenosis (arrows) in the MCA stem.

View larger version (17K): [in a new window]   FIG 2. Plot shows the interobserver correlation between the two experienced 3D-PDI investigators in the estimation of the percentage of stenosis.