在渐进的多焦点白内障症中MRI发现的概述
Koichiro Mori1, Mariko Kurokawa2, Masafumi Harada3
1Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan. momosan0929@gmail.com.
Japanese journal of radiology
|July 21, 2025
概括
渐进性多焦点白内障 (PML) 是一种严重的大脑疾病,由JC病毒 (JCV) 引起. 早期MRI检测,特别是使用T2WI和SWI,可以改善高风险患者的治疗结果.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 传染性疾病 传染性疾病
背景情况:
- 渐进性多焦点白内障 (PML) 是一种严重的中枢神经系统脱髓化疾病,由JC病毒 (JCV) 感染引起.
- PML影响免疫功能低下的个体,包括艾滋病毒/艾滋病患者,血液性恶性瘤,器官移植,自身免疫性疾病或多发性硬化在疾病修饰疗法的患者.
研究的目的:
- 在MRI上提供PML的成像特征的全面概述.
- 强调早期诊断MRI特征,以改善患者的治疗结果.
- 详细介绍PML在不同阶段和临床亚型的成像.
主要方法:
- 在多个序列的MRI发现的审查:T2WI/FLAIR,T1WI,DWI和SWI.
- 识别特有的早期成像模式,如"点纹模式"和"银河系外观".
- 讨论诊断挑战,包括CSF中较低的JCVDNA水平以及对超敏感PCR的需求.
主要成果:
- 在PML病变中,通常会出现T2WI/FLAIR高强度,T1WI低强度和DWI高强度.
- 敏感度加权成像 (SWI) 低血压正在成为潜在的早期诊断标志物.
- 早期检测显著提高了生存率,死亡率在20-90%之间.
结论:
- 磁力共振成像对于诊断PML至关重要,在各种序列上有特征性发现.
- 识别早期的MRI标志物,如点纹模式和SWI低血压,对于及时干预至关重要.
- 在高风险人群中,定期进行MRI查对于改善患者的预后和存活率至关重要.
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