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为探索磁共振成像在视神经萎缩和缺血性视神经病变等视神经疾病的临床应用价值,采用超导型1.5TMR机行频谱预饱和反转恢复序列和液体信号衰减反转恢复序列,三方位检查27例视神经疾病患者。结果:视神经萎缩17例(30眼)除3例肿瘤压迫外在MRI上均可见视神经异常高信号。缺血性视神经病变5例中4例发病1月后检查发现视神经信号异常,1例第10天检查未发现异常,同时发现3例有多发脑缺血灶占60%,2例阴性占40%。视神经挫伤3例中2例视神经异常信号,且病灶均位于眶尖近管内段处,经皮质内固醇激素治疗后视力均提高,1例未见异常。3例视乳头水肿者中1例仅见视神经异常高信号,为临床误诊,1例为后组筛窦粘液性囊肿(2.2×2×2cm)压迫所致,另1例MRI头部和眼眶视神经均未发现异常,此外2例视乳头水肿临床误诊为视神经炎。结论:MRI有助于视神经疾病的诊断和指导临床。
In order to explore the clinical value of magnetic resonance imaging in optic nerve diseases such as optic atrophy and ischemic optic neuropathy, superconducting 1.5 TMR line spectrum pre-saturation inversion recovery sequence and liquid signal attenuation inversion recovery sequence were used. 27 cases of optic nerve disease patients. Results: There were 17 cases of optic atrophy (30 eyes) except for 3 cases of tumor oppression. 4 cases of ischemic optic neuropathy in 4 cases found after 1 month examination revealed optic nerve signal abnormalities, 1 case found no abnormalities on the 10th day, also found in 3 cases of multiple cerebral ischemic lesions accounted for 60%, 2 cases of negative accounted for 40% . Three cases of optic nerve contusion in 2 cases of abnormal signals of the optic nerve, and the lesions are located in the proximal orbital apex proximal to the corticosteroid treatment after visual acuity were improved, 1 case no exception. One case of papilledema showed only a high signal of abnormal optic nerve, which was clinically misdiagnosed. One case was caused by compression of the posterior ethmoid mucinous cyst (2.2 × 2 × 2 cm), while the other 1 case had MRI head and orbit Optic nerve were found no abnormalities, in addition to 2 cases of papilledema clinically misdiagnosed as optic neuritis. Conclusion: MRI contributes to the diagnosis and guidance of optic nerve disease.