title: A case of MELAS: hyperperfused lesions detected by non-invasive perfusion-weighted MR imaging.
abstract: We report a case of MELAS in which lesions were detected by perfusion-weighted MR imaging. Perfusion-weighted MRI using contrast media (PWI) and FAIR (flow-sensitive alternating inversion recovery), an arterial spin labeling method, clearly showed these lesions as hyperperfused areas. One of these lesions, diminished after steroid therapy, could also be detected by FAIR.
authors.affiliation: Department of Radiology, Hiroshima University School of Medicine, Japan. my-takasu@syd.odn.ne.jp
authors.forename: Miyuki
authors.initials: M
authors.lastname: Takasu
authors.forename: Toshio
authors.initials: T
authors.lastname: Kajima
authors.forename: Katsuhide
authors.initials: K
authors.lastname: Ito
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Kato
authors.forename: Nobuo
authors.initials: N
authors.lastname: Sakura
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D006801:Humans; D017241:MELAS Syndrome / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male