Christopher Sean Eddleman1, Hyun Jeong2, Michael C. Hurley2, Christopher C. Getch, Guilherme Dabus2, Bernard R. Bendok2, Hunt H. Batjer, Timothy J. Carroll2
1Neurological Surgery, Northwestern University, Chicago, IL, USA; 2Radiology, Northwestern University
While digital subtraction angiography (DSA) of intracranial arteriovenous malformations (iAVMs) allow the capturing of very high temporal resolution hemodynamic images, time-resolved MR angiography is catching up. Using a radial sliding window and mask subtractions, this time-resolved MRA sequence captures iAVMs at 6 frames/sec and at sub-millimeter spatial resolution, approximating DSA. Here we demonstrate the comparison of 4D RS-MRA and DSA images of iAVMs.