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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).
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