Evaluation of residual perfusion of treated AVMs using a 4D MR angiography at 3T in correlation to i.a. DSA

Purpose: New acquisition techniques like CENTRA and Keyhole imaging in 4D MR angiography allow imaging of the brain perfusion with both high temporal and spatial resolution. The purpose of our study was to compare results from 4D MR angiography with those from i.a. DSA in patients with treated arteriovenous malformations (AVM) to evaluate a residual perfusion. Materials and Methods: 13 patients with treated AVMs were examined using a 4D MR Angiography on a clinical 3T scanner (Achieva, Philips). After bolus injection of 12ml gadodiamide 20 dynamic 3D datasets with a temporal resolution of 1.7s and a spatial reso…