title: Magnetic resonance angiography of the extracranial carotid arteries and intracranial vessels: a review.
abstract: MRI is uniquely suited for evaluation of vascular structures due to its sensitivity to a variety of flow-related phenomena. Recent work has demonstrated that high quality magnetic resonance angiograms (MRA) of the carotid arteries and intracranial vasculature can be achieved by using gradient-echo techniques with short echo times. These MRAs are displayed like conventional arteriograms, but are acquired in a noninvasive fashion with a minimal increase in examination time. We used MRA to visualize 50 of 54 carotid bifurcations tested, with good correlation to the intra-arterial angiograms. We examined the intracranial vasculature in over 40 patients, and demonstrated aneurysms, vascular malformations, and occlusions.
authors.affiliation: Department of Radiology, University Hospitals of Cleveland, Case Western Reserve University, OH.
authors.forename: J S
authors.initials: JS
authors.lastname: Ross
authors.forename: T J
authors.initials: TJ
authors.lastname: Masaryk
authors.forename: M T
authors.initials: MT
authors.lastname: Modic
authors.forename: S I
authors.initials: SI
authors.lastname: Harik
authors.forename: M
authors.initials: M
authors.lastname: Wiznitzer
authors.forename: W R
authors.initials: WR
authors.lastname: Selman
mesh_terms: D001808:Blood Vessels / Q000473:pathology; D002339:Carotid Arteries / Q000000981:diagnostic imaging / Q000473:pathology*; D002340:Carotid Artery Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D002560:Cerebrovascular Circulation; D006801:Humans; D008279:Magnetic Resonance Imaging; D008433:Mathematics; D013382:Subtraction Technique