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Abstract

Micro-arteriovenous malformations of the brain: superselective angiography in diagnosis and treatment.

R Willinsky, K TerBrugge, W Montanera, C Wallace and S Aggarwal
American Journal of Neuroradiology January 1992, 13 (1) 325-330;
R Willinsky
Department of Radiology, Toronto Western Hospital, Ontario, Canada.
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K TerBrugge
Department of Radiology, Toronto Western Hospital, Ontario, Canada.
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W Montanera
Department of Radiology, Toronto Western Hospital, Ontario, Canada.
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C Wallace
Department of Radiology, Toronto Western Hospital, Ontario, Canada.
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S Aggarwal
Department of Radiology, Toronto Western Hospital, Ontario, Canada.
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Abstract

PURPOSE We assessed the usefulness of superselective angiography in patients with micro-arteriovenous malformations.

PATIENTS AND METHODS Five patients had superselective angiography for either diagnosis or treatment of brain arteriovenous malformations having a nidus of less than 1 cm. All patients presented with an intracerebral hematoma.

RESULTS In one patient superselective angiography confirmed the presence of a shunt that was suspected due to visualization of an early vein on the follow-up angiogram; in another patient superselective angiography was helpful in defining the topography of the malformation; in the remaining three patients, superselective angiography was used for embolization of the malformation. We were unsuccessful in achieving a complete angiographic cure in these 3; however, superselective angiography revealed an aneurysm in one that was obliterated by the liquid adhesive embolic agent.

CONCLUSION With the recent advances in microcatheters, superselective angiography has a promising role in defining the topography and angioarchitecture of micro-arteriovenous malformations. Micro-arteriovenous malformations may not be angiographically evident at the time of initial hemorrhage due to the hematoma. With future technical advances it may be possible to completely obliterate these malformations by embolization alone.

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American Journal of Neuroradiology
Vol. 13, Issue 1
1 Jan 1992
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Micro-arteriovenous malformations of the brain: superselective angiography in diagnosis and treatment.
R Willinsky, K TerBrugge, W Montanera, C Wallace, S Aggarwal
American Journal of Neuroradiology Jan 1992, 13 (1) 325-330;

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Micro-arteriovenous malformations of the brain: superselective angiography in diagnosis and treatment.
R Willinsky, K TerBrugge, W Montanera, C Wallace, S Aggarwal
American Journal of Neuroradiology Jan 1992, 13 (1) 325-330;
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