Fig. 4From: Imaging of cerebral aneurysms: a clinical perspectiveMRA scan of aneurysms. a Axial TOF MRA demonstrates a left ophthalmic artery aneurysm (arrow). Although it avoids the use of contrast, the longer acquisition time introduces some motion artifact. b Contrast-enhanced axial MRA in the same patient with less motion artifact of the aneurysm (arrow)Back to article page