| DWI诊断CO中毒迟发性脑病的应用价值 |
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| 引用本文： | 刘力,白旭.DWI诊断CO中毒迟发性脑病的应用价值[J].山东大学学报(医学版),2011,49(11):93-96. |
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| 作者姓名： | 刘力 白旭 |
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| 作者单位： | 天津环湖医院神经放射科, 天津 300060 |
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| 摘 要： | 目的 研究弥散加权成像(DWI)诊断CO中毒迟发性脑病的应用价值。方法 对31例CO中毒迟发性脑病患者均行MR DWI检查，MRI检查在CO中毒后15～90d内完成,DWI使用单次激发平面回波序列，TR=2900ms，TE=84ms，b值为0和1000s/mm2。通过常规MRI、DWI及ADC图评价脑室周围脑白质区信号改变，测量病变区ADC值并与正常信号区进行对比。结果 所有患者DWI序列均显示在双侧脑室周围脑白质区及半卵圆中心弥漫高信号影，显示范围与T2WI及Flair序列所显示范围相似，ADC图显示为轻度低信号或等信号,其平均ADC值均较T2WI及Flair序列显示正常的区域明显减低(P<0.05)。结论 脑白质区ADC值减低的程度和持续时间与患者临床进展过程有关，通过对ADC值的观察能对CO中毒迟发性脑病患者的临床进展过程及预后进行推测。
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| 关 键 词： | 磁共振成像 弥散加权成像 一氧化碳中毒 迟发性脑病 |
| 收稿时间： | 2011-04-12 |
Application value of MR diffusion-weighted imaging(DWI) in the diagnosis of delayed encephalopathy after carbon monoxide poisoning |
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| LIU Li,BAI Xu.Application value of MR diffusion-weighted imaging(DWI) in the diagnosis of delayed encephalopathy after carbon monoxide poisoning[J].Journal of Shandong University:Health Sciences,2011,49(11):93-96. |
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| Authors: | LIU Li BAI Xu |
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| Institution: | Department of Neuroradiology, Tianjin Huanhu Hospital, Tianjin 300060, China |
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| Abstract: | Objective To investigate the application value of diffusion-weighted imaging(DWI) in diagnosing delayed encephalopathy after carbon monoxide(CO) poisoning.Methods 31 patients with delayed encephalopathy after CO poisoning were enrolled in this study.All of them underwent MR imaging 15-90 days after exposure to CO.DW images were acquired using a single-shot echoplanar imaging sequence in the transverse plane(TR/TE,2900ms/84ms) with b values of 0 and 1000s/mm2.Conventional MR images,DWIs,and apparent diffusio... |
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| Keywords: | Magnetic resonance imaging Diffusion-weighted imaging Carbon monoxide poisoning Delayed encephalopathy |
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