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AJNR - American Journal of Neuroradiology

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Cerebral Hemodynamics in Asymptomatic Patients with Internal Carotid Artery Occlusion: A Dynamic Susceptibility Contrast MR and Transcranial Doppler Study

Alessio Apruzzese^a, Mauro Silvestrini^a, Roberto Floris^a, Fabrizio Vernieri^a, Alessandro Bozzao^a, Gisela Hagberg^a, Carlo Caltagirone^a, Salvatore Masala^a and Giovanni Simonetti^a

^a From the Istituto Neurotraumatologico Italiano (A.A.), Grottaferrata, Rome, the Department of Radiology (R.F., A.B., S.M., G.S.), University of Rome Tor Vergata, the Department of Neurology (M.S., F.V., C.C.), University of Rome Tor Vergata, and the Foundation S. Lucia (G.H., C.C.), Rome, Italy.

View larger version (20K): [in a new window]   FIG 1. Mean values and confidence intervals (mean ± 1.96 SD) for the BHI measured by TCD

View larger version (30K): [in a new window]   FIG 2. Mean values and confidence intervals (mean ± 1.96 SD) for healthy subjects and occluded and contralateral hemisphere of the patients in the GM and WM for rCBV (A), MTT (B), and rCBF (C) measured by MR

View larger version (18K): [in a new window]   FIG 3. Linear regression analysis of the BHI and rCBV of the GM in the occluded hemisphere, showing that patients with higher rCBV have lower BHI values