CAJ | 학술논문

目的：视神经胶质瘤的MRI表现。方法总结经手术病理证实的15例视神经胶质瘤的MRI特征。15例均行横轴位、冠状位和斜矢状位平扫加增强扫描。结果15例视神经胶质瘤均累及眶内段，其中累及球内段3例、管内段7例、视交叉4例、视束1例。视神经迂曲形增粗5例，梭形增粗4例，不规则肿块4例，圆形肿块1例，哑铃形1例。肿瘤在T1WI上为略低或等信号，T2WI上为略高、等、低信号；肿瘤内信号均匀12例，信号不均3例；肿瘤无强化4例，轻度强化6例，明显强化5例。结论 MRI在显示视神经胶质瘤位置形态、信号特征及强化特点均有典型表现。
목적：시신경효질류적MRI표현。방법총결경수술병리증실적15례시신경효질류적MRI특정。15례균행횡축위、관상위화사시상위평소가증강소묘。결과15례시신경효질류균루급광내단，기중루급구내단3례、관내단7례、시교차4례、시속1례。시신경우곡형증조5례，사형증조4례，불규칙종괴4례，원형종괴1례，아령형1례。종류재T1WI상위략저혹등신호，T2WI상위략고、등、저신호；종류내신호균균12례，신호불균3례；종류무강화4례，경도강화6례，명현강화5례。결론 MRI재현시시신경효질류위치형태、신호특정급강화특점균유전형표현。
Objective To study the MRI findings of optic glioma.Methods Axial,coronal and oblique sagittal high-resolution MR images of 15 patients with pathologically confirmed optic gliomas were analyzed.Results The intraorbital optic nerves were involved in all patients including intraocular(3),intracanalicular(7),optic chiasm(4),and optic tract(1)involvement.The optic nerve was tortuous(5),fusiform(4),irregular(4),round(1),or dumbbell-shaped(1).The tumor was homogeneously(12) T1 iso-or hypointense and T2 iso-or hyperintense,cystic with heterogeneous signal intensities(3).There was no(4),slight(6), or marked(5)contrast enhancement in the lesions.Conclusions MRI provides detailed information on the morphology,signal characteristics and enhancement of optic gliomas.