title: Normal variants of the intracranial circulation demonstrated by MR angiography at 3T.
abstract: Magnetic resonance angiography (MRA) at 3T offers increased signal to noise ratio with better background suppression, leading to exquisite depiction of the intracranial circulation. We present a pictorial review of the normal variations and anomalies of the intracranial circulation detected on MRA performed on a high field 3T clinical scanner using parallel imaging techniques. The salient imaging features of these anomalies and normal variations are discussed with relevance to clinical practice.
authors.affiliation: National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore 308433, Singapore. parurad@hotmail.com
authors.forename: H
authors.initials: H
authors.lastname: Parmar
authors.forename: Y Y
authors.initials: YY
authors.lastname: Sitoh
authors.forename: F
authors.initials: F
authors.lastname: Hui
mesh_terms: D020771:Anterior Cerebral Artery / Q000002:abnormalities / Q000473:pathology; D001488:Basilar Artery / Q000002:abnormalities / Q000473:pathology; D002343:Carotid Artery, Internal / Q000002:abnormalities; D002539:Cerebral Arterial Diseases / Q000175:diagnosis; D002536:Cerebral Arteries / Q000002:abnormalities / Q000033:anatomy & histology*; D002560:Cerebrovascular Circulation / Q000502:physiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D018810:Magnetic Resonance Angiography / Q000379:methods*; D020768:Middle Cerebral Artery / Q000002:abnormalities / Q000473:pathology; D020769:Posterior Cerebral Artery / Q000002:abnormalities / Q000473:pathology; D014711:Vertebral Artery / Q000473:pathology