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 />
dAVF Imaging: CT<br />
• NECT: May be normal<br />
• CECT: May see tortuous dural feeders &<br />
enlarged dural sinus<br />
CECT<br />
dAVF Imaging: MRI<br />
• Flow voids around dural<br />
venous sinus<br />
• Thrombosed sinus<br />
• Dilated cortical veins<br />
without parenchymal nidus<br />
• T2: Focal hyperintensity in<br />
adjacent brain<br />
• MRA: May be negative<br />
• MRV: Occluded sinus,<br />
collateral flow<br />
T1+Gd<br />
!!!<br />
dAVF<br />
T2 T2 T1 T1<br />
9
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