Cerebral vascular malformations: applications of magnetic resonance imaging to differential diagnosis.
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.
Imakita
S
S
Department of Radiology, National Cardiovascular Center, Osaka, Japan.
Nishimura
T
T
Yamada
N
N
Naito
H
H
Takamiya
M
M
Yamada
Y
Y
Kikuchi
H
H
Yonekawa
Y
Y
Sawada
T
T
Yamaguchi
T
T
D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis*; D002550:Cerebral Veins; D002648:Child; D003937:Diagnosis, Differential; D005069:Evaluation Studies as Topic; D005260:Female; D006392:Hemangioma, Cavernous / Q000175:diagnosis*; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged