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AJNR - American Journal of Neuroradiology

Published ahead of print on January 31, 2008
doi: 10.3174/ajnr.A0968

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Increased Cochlear Fluid-Attenuated Inversion Recovery Signal in Patients with Vestibular Schwannoma

R.A. Bhadelia^a,b, K.L. Tedesco^a, S. Hwang^a, S.H. Erbay^a, P.H. Lee^a, W. Shao^a and C. Heilman^a

^a Tufts-New England Medical Center and Tufts University, Boston, Mass
^b Beth Israel Deaconess Medical Center and Harvard University, Boston, Mass

View larger version (69K): [in this window] [in a new window]   Fig 1. FLAIR (A) and T2-weighted (B) images in a patient with a intracanalicular vestibular schwannoma showing region-of-interest placements in the cochlea and brain stem on the affected and unaffected sides.

View larger version (72K): [in this window] [in a new window]   Fig 2. FLAIR images of cochleae on the affected side of a patient with vestibular schwannoma (A), a control subject (B), and the unaffected side of same patient as see in A (C) clearly show increased cochlear signal intensity on the affected side compared with controls and the unaffected side.

View larger version (26K): [in this window] [in a new window]   Fig 3. Scatterplot of CIBI ratios of affected and unaffected sides in patients and in controls.