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Abstract #4406

High Resolution Wall and Lumen MRI of the Middle Cerebral Arteries at 3-Tesla

Chang-Woo Ryu1, Geon-Ho Jahng1, Eui-Jong Kim2, Woo_Suk Choi2, Dal-Mo Yang1

1Radiology, East-West Neo Medical Center, Kyung Hee University, Seoul, Korea, Republic of; 2Radiology, Kyung Hee University Hospital, Kyung Hee University, Seoul, Korea, Republic of

We imaged the walls of stenotic MCAs in symptomatic and asymptomatic patients using high resolution BB-MRI, in order to characterize vulnerable plaques. Multi-contrast (T1-, T2-, and proton density)-weighted BB-MRIs were acquired in 16 MCA stenosis. The plaque signal intensity was interpreted and the total wall thickness was measured at the most stenotic segment. Hyperintense foci were demonstrated more frequently within the plaques of symptomatic stenoses than within the plaques of asymptomatic stenoses Total wall thickness in the symptomatic stenoses was significantly higher than that seen in the asymptomatic stenoses. High-resolution, multi-contrast-weighted BB-MRI has the potential to characterize intracranial atherosclerotic plaques.