摘要
目的探讨3D-Fiesta序列在儿童复杂性斜视中,对于相关眼运动神经及受累眼外肌异常的诊断价值。方法18例经临床诊断证实的儿童复杂性斜视患者,回顾性分析各眼运动神经及眼外肌的MR影像表现。结果 1)眼球后退综合征:11例共15只患眼,患侧外展神经脑池段缺如或发育不良,眼外肌形态正常;2)眼外肌纤维化综合征:3例共5只患眼,表现为动眼神经、外展神经脑池段异常纤细改变,多组眼外肌不同程度变细、变薄,以上直肌明显;3)先天性眼一面麻痹综合征:4例7只患眼,表现为外展神经、面神经脑池段纤细或缺如,患侧外直肌变薄、变细。结论 3D-Fiesta序列能够清晰显示眼运动神经及其支配的眼外肌异常,提供判断复杂性斜视病因的影像信息,具有重要的临床应用价值。
Objective To investigate the value of 3D-Fiesta sequences for showing ophthalmic motion nerves and extraocular muscles abnormalities in the complex strabismus of children. Methods Eighteen patients with complex strabismus underwent MRI examination on 3.0 T MR unit. Ophthalmic nerves to extraocular muscles were imaged and analyzed with 3D-Fiesta scanning sequences in all patients. Results Patients with duane syndrome （ 11 cases, 15 eyes） all exhibited absence or hypoplasia of abducens nerve （CN6） and there were no hypoplasia of EOMs. Patients with congenital fibrosis of EOMs （3 cases, 5 eyes） exhibited severe hypoplasia of CN3 and CN6, and EOMs appeared hypoplasia to a different degree, particularly severe for the superior rectus. Multiple nerves displayed aplasia in patients with Mobius syndrome （4 case, 7 eyes） and there were hypoplasia of the lateral rectus in two cases. Conclusion Using 3D-fiesta scanning sequences could directly demonstrate absence or hypoplasia of ophthalmic nerves and abnormalities of corresponding extraocular muscles, which indicates its important value of clinical application in congenital complex strabismus.
出处
《医学影像学杂志》
2016年第10期1778-1781,共4页
Journal of Medical Imaging
关键词
儿童眼运动神经
斜视
磁共振成像
Strabismus
Oculomotor muscles
Ophthalmic nerve
Magnetic resonance imaging
