title: Importance of Contrast-Enhanced Fluid-Attenuated Inversion Recovery Magnetic Resonance Imaging in Various Intracranial Pathologic Conditions.
abstract: Intracranial lesions may show contrast enhancement through various mechanisms that are closely associated with the disease process. The preferred magnetic resonance sequence in contrast imaging is T1-weighted imaging (T1WI) at most institutions. However, lesion enhancement is occasionally inconspicuous on T1WI. Although fluid-attenuated inversion recovery (FLAIR) sequences are commonly considered as T2-weighted imaging with dark cerebrospinal fluid, they also show mild T1-weighted contrast, which is responsible for the contrast enhancement. For several years, FLAIR imaging has been successfully incorporated as a routine sequence at our institution for contrast-enhanced (CE) brain imaging in detecting various intracranial diseases. In this pictorial essay, we describe and illustrate the diagnostic importance of CE-FLAIR imaging in various intracranial pathologic conditions.
authors.affiliation: Department of Radiology, Dongguk University Ilsan Hospital, Goyang 10326, Korea.; Department of Radiology, College of Medicine, Kangwon National University, Chuncheon 24289, Korea.
authors.forename: Eun Kyoung
authors.initials: EK
authors.lastname: Lee
authors.affiliation: Department of Radiology, Dongguk University Ilsan Hospital, Goyang 10326, Korea.
authors.forename: Eun Ja
authors.initials: EJ
authors.lastname: Lee
authors.affiliation: Department of Radiology, Dongguk University Ilsan Hospital, Goyang 10326, Korea.
authors.forename: Sungwon
authors.initials: S
authors.lastname: Kim
authors.affiliation: Department of Radiology, Dongguk University Ilsan Hospital, Goyang 10326, Korea.
authors.forename: Yong Seok
authors.initials: YS
authors.lastname: Lee
mesh_terms: D016080:Arachnoid Cysts / Q000175:diagnosis* / Q000473:pathology; D001921:Brain / Q000473:pathology*; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology; D003287:Contrast Media; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*
chemical_list: D003287:Contrast Media
keywords: Brain; Contrast; Fluid-attenuated inversion recovery sequence; MRI