Vascular Malformations Smith 12-12-2012 - Inova Health System
Vascular Malformations Smith 12-12-2012 - Inova Health System
Vascular Malformations Smith 12-12-2012 - Inova Health System
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2/8/20<strong>12</strong><br />
Arteriovenous Fistulas<br />
• Distinguished from AVMs by presence of<br />
direct, high flow fistula between artery &<br />
vein<br />
– Dural AVF (dAVF)<br />
– Cavernous carotid fistula (CCF)<br />
– Vein of Galen malformation<br />
dAVF<br />
• Arteriovenous shunts within<br />
dura<br />
• 10-15% of intracranial<br />
vascular malformations<br />
• 2 types:<br />
– Adult: Tiny vessels in wall of<br />
thrombosed dural venous sinus<br />
typically middle aged & older<br />
patients<br />
• Usually acquired - trauma<br />
– Infantile: Multiple high-flow AVshunts<br />
involving several<br />
thrombosed dural sinuses<br />
SSFSE<br />
<br />
dAVF<br />
T1<br />
SSFSE<br />
T1<br />
7
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