Dynamic 3D MR Angiography of Intra- and

giography combined with parallel imaging at 3T was ap-plied to an intracranial arteriovenous malformation, a du-ral arteriovenous fistula, and an extracranial facial arteriovenous malformation. The temporal resolution was one image every 1.5 seconds. Arterial feeders were depicted in all three cases. Early venous drainage was observed in the intracerebral arteriovenous malformation and the du-ral arteriovenous fistula, but not in the facial arteriovenous malformation. All findings were concordant with conven-tional angiography. Spatial resolution of contrast-enhanced 2D projec-tion MR angiography (MRA) is restricted when a temporal resolution of two frames per second is ob-tained (1–3). This technique has special advantages for MR imaging of vascular malformations, becaus