视神经炎中视神经的长时间回波激发序列磁共振成像

Long time echo stir sequence magnetic resonance imaging of optic nerves in optic neuritis.

作者信息

Tartaro A, Onofrj M, Thomas A, Fulgente T, Delli Pizzi C, Bonomo L

机构信息

Department of Neurology, State University of Chieti, Ospedale ex-Pediatrico, Italy.

出版信息

Eur J Radiol. 1995 Mar;19(3):155-63. doi: 10.1016/0720-048x(94)00600-h.

DOI:10.1016/0720-048x(94)00600-h

PMID:7601164

Abstract

Magnetic resonance imaging of optic nerves was obtained in 13 patients with acute optic neuritis and in 13 patients with a previous history of optic neuritis (ON), assessed by clinical, visual fields and visual evoked potentials evaluations. Results of the conventional short tau inversion recovery (STIR) sequence obtained with short time echo (STE-STIR: 22 ms) were compared with long time echo (LTE-STIR: 80 ms) sequence. The conventional STE-STIR sequence revealed lesions in 78.5% of acute ON and in 58.8% of optic nerves affected by previous ON. The LTE-STIR sequence was diagnostic in 92.8% of acutely symptomatic nerves, in 94.1% of nerves with previous ON. The calculated length of optic nerve lesions was significantly longer in imaging obtained with the LTE-STIR sequence than with the conventional STE-STIR sequences, both in acute and previous ON.

摘要

对13例急性视神经炎患者和13例有视神经炎（ON）既往史的患者进行了视神经的磁共振成像检查，并通过临床、视野和视觉诱发电位评估进行评价。将采用短回波时间（STE-STIR：22毫秒）获得的传统短tau反转恢复（STIR）序列的结果与长回波时间（LTE-STIR：80毫秒）序列的结果进行比较。传统的STE-STIR序列在78.5%的急性ON患者和58.8%的既往ON累及的视神经中发现病变。LTE-STIR序列在92.8%的急性有症状神经和94.1%的既往ON神经中具有诊断价值。在急性和既往ON中，LTE-STIR序列成像所计算出的视神经病变长度均显著长于传统STE-STIR序列成像。