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AJNR - American Journal of Neuroradiology

Published ahead of print on October 18, 2007
doi: 10.3174/ajnr.A0748

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Susceptibility-Weighted Imaging for the Evaluation of Patients with Familial Cerebral Cavernous Malformations: A Comparison with T2-Weighted Fast Spin-Echo and Gradient-Echo Sequences

J.M. de Souza^a, R.C. Domingues^c,d, L.C.H. Cruz, Jr.^b,c,d, F.S. Domingues^a, T. Iasbeck^a and E.L. Gasparetto^b,c,d

^a Divisions of Neurosurgery, Department of Radiology, University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
^b Department of Surgery and Division of Neuroradiology, Department of Radiology, University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
^c Multi-Imagem, Rio de Janeiro, RJ, Brazil
^d CDPI-Clínica de Diagnóstico Por Imagem, Rio de Janeiro, RJ, Brazil

View larger version (68K): [in this window] [in a new window]   Fig 1. A 46-year-old male patient with familial CCM. A, Axial T2-weighted FSE image shows no significant abnormalities. B, Axial T2-weighted GRE image demonstrates a small extinction on the right parietal region, though it is larger on SWI (type IV lesion) (C, arrow).

View larger version (63K): [in this window] [in a new window]   Fig 2. A 53-year-old female patient with familial CCM. A, Axial T2-weighted FSE image shows no significant abnormalities. B, Axial T2-weighted GRE image shows a small focus of low signal intensity (arrow) on the left cerebellar hemisphere (type IV lesion). C, SWI demonstrates the cerebellar lesion but, in addition, shows a left temporal lesion (arrow), which was obscured by the bone artifacts.

View larger version (70K): [in this window] [in a new window]   Fig 3. A 25-year-old female patient with familial CCM. A, Axial T2-weighted FSE image shows a small area of low signal intensity on the right frontotemporal region (arrow). B, T2-weighted GRE image clearly demonstrates the lesion (type III) (arrow). C, SWI confirms the right frontotemporal lesion. Additionally, SWI demonstrates bilateral frontal lesions (arrows), which were blurred by the bone artifacts.

View larger version (67K): [in this window] [in a new window]   Fig 4. A 22-year-old female patient with familial CCM. A, Axial T2-weighted FSE image shows a large right temporal lesion with mixed signal intensity (type II). B, T2-weighted GRE image demonstrates this lesion and, in addition, a small focus of low signal intensity on the right occipital lobe (arrow). C, SWI shows a small focus of low signal intensity on the right temporal region (arrow), which is dissociated from the large lesion (bloom effect).

View larger version (71K): [in this window] [in a new window]   Fig 5. A 74-year-old male patient with familial CCM. A, Axial T2-weighted FSE image shows areas of white matter high signal intensity and a small focus of low signal intensity on the left (arrow). B, T2-weighted GRE image demonstrates multiple foci of low signal intensity on the frontoparietal regions (type IV). C, SWI shows a higher number of lesions and confirms the presence of larger lesions (arrows), which are not seen on the T2-weighted GRE image.