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目的探讨一氧化碳(CO)中毒性脑病的磁共振成像(MRI)特点,提高对此病的了解。方法对36例CO中毒性脑病患者的MRI影像表现进行回顾性分析。结果 36例CO中毒性脑病患者的MRI影像表现可归纳为:①基底节受累(8例);②单纯脑皮层受累(3例);③基底节和脑白质同时受累,部分合并有乳突炎(10例);④基底节区+脑皮层同时受累,部分合并有乳突炎(8例);⑤基底节区、脑皮层和脑白质同时受累,部分合并乳突炎(5例);⑥单纯乳突炎改变(1例);⑦阴性(1例)。受累区域MRI表现为稍长T1稍长T2信号,常为对称性,水抑制序列(fluid attenuated inversion recovery,FLAIR)均为高信号。弥散加权成像(DWI)表现分为高信号(33例)和等信号(3例)。结论 MRI能早期全面了解CO中毒患者脑部受累情况,有助于临床医生对此病预后的评估。
Objective To investigate the magnetic resonance imaging (MRI) characteristics of carbon monoxide poisoning encephalopathy and to improve the understanding of the disease. Methods The MRI findings of 36 patients with CO toxic encephalopathy were retrospectively analyzed. Results The MRI findings of 36 patients with CO toxic encephalopathy were summarized as follows: ① basal ganglia involvement (8 cases); ② simple cortical involvement (3 cases); ③ basal ganglia and white matter involvement, some with mastoiditis (N = 10); ④ basal ganglia + cortex at the same time involved, some with mastoiditis (8 cases); ⑤ basal ganglia, cerebral cortex and white matter involvement, partial merger mastoiditis (5 cases); ⑥ Simple mastoiditis changes (1 case); ⑦ negative (1 case). MRI findings of the affected area showed a slightly longer T1 slightly longer T2 signal, often symmetry, and fluid attenuated inversion recovery (FLAIR) were all high signals. Diffusion-weighted imaging (DWI) performance is divided into high signal (33 cases) and equal signal (3 cases). Conclusion MRI can comprehensively understand the brain involvement in patients with CO poisoning in the early stage and help clinicians evaluate the prognosis of the disease.