Article Figures & Data
Figures
- Fig 1.
31-year-old man with a left frontal arteriovenous malformation.
A–C, Conventional angiograms in sagittal (A, B) and coronal (C) views show an arteriovenous malformation fed by branches of the anterior cerebral artery. It drains into the superior sagittal sinus via 2 veins and into the right sinus via 1 deep vein.
D–F, Several stages of 3D dynamic MR digital subtraction angiograms during the passage of contrast bolus in sagittal (D, late arterial phase; E, venous phase) and coronal (F, venous phase) maximum-intensity-projection reconstructions show findings similar to those of the conventional catheter angiography with 3 draining veins (arrows, E).
- Fig 2.
Postradiosurgery study of 48-year-old woman with a left frontal arteriovenous malformation.
A–B, Conventional angiograms in sagittal (A) and coronal (B) views show a medium-sized arteriovenous malformation fed by branches of the middle cerebral artery. It drains via 2 veins (anterior and posterior) into the superior sagittal sinus. Note stenosis of the anterior vein.
C–I, Several stages of 3D dynamic MR digital subtraction angiograms during the passage of a contrast bolus in sagittal (C, early arterial phase; D, late arterial phase; E, early venous phase; and F–G, late venous phase) and coronal (H, arterial phase; I, early venous phase) maximum-intensity-projection reconstructions show the nidus and 2 draining veins matching the conventional catheter angiography findings.
Tables
Summary of CCA and 3D dynamic MR-DSA findings
Parameters CCA 3D dynamic MR-DSA Detection of nidus 19/19 19/19 Size of nidus <3 cm 14/19 14/19 3–6 cm 4/19 4/19 >6 cm 1/19 1/19 Venous drainage superficial 8/19 7/19 deep 3/19 3/19 deep and superficial 8/19 9/19
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