title: Long time echo STIR sequence magnetic resonance imaging of optic nerves in optic neuritis.
abstract: Magnetic resonance images of optic nerves were obtained in 20 patients with acute optic neuritis (ON), and assessed by means of clinical, visual field and visual evoked potential evaluations; the imaging was repeated 1 year later. The results of the conventional Short Tau Inversion Recovery (STIR) sequence obtained using short time echo (STE-STIR: 22 msec) were compared with those of the long time echo sequence (LTE-STIR: 80 msec). The conventional STE-STIR sequence revealed lesions in 57.2% cases of acute ON and in 42.9% of the optic nerves affected by previous ON; the LTE-STIR sequence was diagnostic in 95.2% of acute ON cases and in 85% of patients with previous ON. The calculated length of the optic nerve lesions was significantly longer in the images obtained using the LTE-STIR sequence than in those obtained using conventional STE-STIR sequences.
authors: Istituto di Radiologia, Università degli Studi G. D'Annunzio, Chieti.
authors: A
authors: A
authors: Tartaro
authors: M
authors: M
authors: Onofrj
authors: C
authors: C
authors: Delli Pizzi
authors: L
authors: L
authors: Bonomo
authors: A
authors: A
authors: Thomas
authors: T
authors: T
authors: Fulgente
authors: D
authors: D
authors: Gambi
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D009900:Optic Nerve / Q000473:pathology*; D009902:Optic Neuritis / Q000473:pathology*; D013997:Time Factors