摘要
目的:应用磁共振CUBE 3D T_2WI脂肪抑制序列对外伤后视神经损伤进行研究。方法 :选取20例临床以眼眶外伤病史来诊、同时伴有视力损伤的患者行眼眶磁共振冠状位STIR序列及CUBE 3D T_2WI脂肪抑制序列扫描视神经全程及视交叉,并对视神经图像分析及读片,根据视神经各段信号有无异常及信号异常的程度(异常、可疑异常、无异常)进行分析和评价,并将影像结果与临床眼科检查结果进行对比分析。结果:STIR序列显示视神经损伤情况分别为异常50.0%(10/20),可疑异常20.0%(4/20),无异常30.0%(6/20);3D CUBE序列显示视神经病变异常情况为信号异常55.0%(11/20),可疑异常30.0%(6/20),无异常15.0%(3/20)。结论 :磁共振CUBE 3D T_2WI脂肪抑制序列可以在较短的扫描时间内获得眼眶三维容积图像,对于视神经各段损伤的情况进行全面、准确的判断,尤其是对于视神经管内段及颅内段的损伤情况判定具有明显优势,对视神经损伤的检出率明显高于眼眶常规STIR扫描序列。
Objective： To evaluate the diagnostic value of CUBE 3D T2WI fat suppression sequence in traumatic optic nerve injury. Methods： Twenty patients with orbital trauma were enrolled in this study. MR examination of STIR sequence and CUBE 3D T2WI fat suppression sequence was performed, which can get the imaging of optic nerve and optic chiasma. And then imaging were analyzed. According to the optic nerve segment of the signal with or without abnormalities and abnor- malities degree of the signal （abnormal, suspicious anomalies, normal） for analysis and evaluation. Imaging results and clinical ophthalmic examination results were compared. Results： On the STIR sequences abnormal optic nerve injury was 50.0%（10/ 20）, suspicious anomalies 20.0%（4/20）, normal 30.0%（6/20）; on 3D CUBE sequence, abnormal optic nerve disease was 55.0% （11/20）, suspicious anomalies 30.0%（6/20）, normal 15.0%（3/20）. Conclusion： The CUBE 3D T2WI fat suppression sequence was significantly higher than the orbital conventional STIR scan sequence.
出处
《中国临床医学影像杂志》
CAS
2018年第2期80-82,91,共4页
Journal of China Clinic Medical Imaging
关键词
视神经损伤
磁共振成像
Optic nerve injuries
Magnetic resonance imaging
