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Cerebral vascular malformations: applications of magentic resonance imaging to differential diagnosis |
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| Authors: | S. Imakita T. Nishimura N. Yamada H. Naito M. Takamiya Y. Yamada H. Kikuchi Y. Yonekawa T. Sawada T. Yamaguchi |
| Affiliation: | (1) Department of Radiology, National Cardivascular Center, Osaka, Japan;(2) Department of Neurosurgery, National Cardiovascular Center, Osaka, Japan;(3) Department of Internal Medicine, National Cardiovascular Center, Osaka, Japan;(4) Department of Neurosurgery, Kyoto University School of Medicine, Yoshida Konoe-cho, Sakyoku, 606 Kyoto, Japan |
| Abstract: | Summary Twelve patients with cerebral vascular malformations (5 cavernous angiomas, 1 thrombosed arteriovenous malformation, and 6 venous angiomas) were studied with magnetic resonance (MR) imaging. All lesions were clearly depicted. Characteristic MR findings were obtained mainly on T2-weighted images: a markedly low intensity area was always seen. The margins of arteriovenous malformation (AVM) and venous angioma were irregular while those of cavernous angioma were smooth in all planes on T2-weighted images. Gradient-echo (GrE) pulse sequences were more sensitive than T2-weighted spin echo (SE) in lesion detection. MR imaging could play an important role in the differential diagnosis of cerebral vascular malformations. |
| Keywords: | Brain Magnetic resonance imaging Cavernous angioma Arteriovenous malformation (AVM) Venous angioma |
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