Contribution of meningeal arteries to cerebral arteriovenous malformations.
We studied 52 patients with cerebral arteriovenous malformations (AVMs) by selective angiography and found that half received supply from meningeal branches of the external carotid artery. The frequency of meningeal arterial contribution was significantly higher in superficial AVMs, especially in the temporal, parietal and occipital regions. Larger lesions and higher shunt with steal phenomena on angiography were other factors favouring a meningeal arterial contribution. Diffuse AVMs with pial arterial networks around the nidus commonly received meningeal blood supply. In the past, meningeal feeders have been thought to be congenital, but this study suggests that they may develop during growth of the AVM.
Miyachi
S
S
Department of Neurosurgery, Nagoya University School of Medicine, Japan.
Negoro
M
M
Handa
T
T
Sugita
K
K
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001158:Arteries; D002648:Child; D002675:Child, Preschool; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000145:classification / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology; D008576:Meningeal Arteries / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology; D008875:Middle Aged; D009778:Occipital Lobe / Q000098:blood supply; D010296:Parietal Lobe / Q000098:blood supply; D010841:Pia Mater / Q000098:blood supply; D011859:Radiography; D012039:Regional Blood Flow; D013702:Temporal Lobe / Q000098:blood supply