发作诱导的可逆磁共振成像异常:一个回顾性队列研究
Zhu Chung Che1, Frederick P Mariajoseph2, Daniel Saddik3
1Department of Neurology, Monash Medical Centre, Clayton, Melbourne, Australia.
Epilepsy & behavior : E&B
|September 7, 2023
概括
发作诱导的可逆磁共振成像异常 (SRMA) 是不常见的,并且与不良的发作结果无关. 高龄和更长的发作时间是SRMA发展的关键风险因素.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 神经成像是一种神经成像.
背景情况:
- 发作诱导的可逆磁共振成像异常 (SRMA) 带来了诊断和管理方面的挑战.
- 了解SRMA的特征和影响对于患者护理至关重要.
研究的目的:
- 确定SRMA在患者中的频率,风险因素,演变和预后意义.
- 调查SRMA与控制或死亡率之间的关联.
主要方法:
- 追溯观察队列研究,对483名连续发作患者进行脑磁共振扫描.
- 分析临床和MRI数据以确定SRMA特征和潜在的预测因素.
- 使用曼·惠特尼U测试和奇方测试进行统计分析,以评估显著性.
主要成果:
- SRMA发生在7.6%的患者中,与年龄较大 (中位数为57岁) 和时间较长 (中位数为5分钟) 相关.
- 扩散限制和ADC降低比T2,FLAIR高强度更早地解决,中位分辨率时间为87天.
- 在SRMA和没有SRMA的患者之间,没有观察到发作自由度或死亡率的显著差异.
结论:
- SRMA是发作后的罕见发现,并不表明有不良的控制或增加的死亡率.
- 高龄和长时间的发作持续时间,包括状态,是SRMA的确定的风险因素.
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