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在诊断多发性硬化症诊所的患者中,偏磁边缘病变的频率和诊断影响
Brian Renner1, Elizabeth Daphne Verter1, Martina Absinta2,3
1Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, CA.
Neurology
|September 2, 2025
概括
在早期多发性硬化症 (MS) 中,偏磁边缘病变 (PRL) 是常见的. 在新诊断的患者中,检测至少一个PRL可以准确地区分MS与其他疾病.
科学领域:
- 神经学
- 放射学
- 生物标志物
背景情况:
- 偏磁边缘损伤 (PRL) 是慢性多发性硬化症 (MS) 的已确定的成像生物标志物.
- 在约50%的诊断患者中,PRL对MS具有很高的特异性 (~90%).
- 之前的研究集中在被诊断为多发性硬化症的患者;本研究在首次临床呈现时检查PRL.
研究的目的:
- 评估PRL的频率和诊断效用,在出现MS初始症状的患者中.
- 在第一次临床表现时评估PRLs在区分MS和模仿疾病的准确性.
主要方法:
- 对疑似脱髓化疾病的成年人 (18-64岁) 进行前性,多中心的横截面观察研究.
- 高分辨率的3D回声平面成像在3特斯拉MRI上检测PRL,由盲人评定者评估.
- 使用2017年麦当劳标准评估的诊断性能,值为≥1PRL和≥2PRL.
主要成果:
- 分析了78名参与者,46%的人至少有一次PRL (共124例PRL).
- 存在≥1个PRL,对MS诊断的敏感度为86%,特异性为90%.
- 值≥2PRL增加了特异性至95%,但降低了敏感性至59%.
结论:
- 在早期的MS病例中,偏磁边缘病变非常普遍.
- 在最初的临床接触中,PRL作为一个有价值的工具来准确地区分MS和模仿MS的疾病.
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