在复发性- 缓解性多发性硬化症中评估残疾时使用Intravoxel不连贯运动指标的实用性
Othman I Alomair1,2, Sami A Alghamdi1, Abdullah H Abujamea3
1Radiological Sciences Department, College of Applied Medical Sciences, King Saud University, P.O. Box 145111, Riyadh 4545, Saudi Arabia.
Diagnostics (Basel, Switzerland)
|August 28, 2025
概括
在多发性硬化症 (MS) 患者中,量化内无干动 (IVIM) 成像指标与残疾相关. 虽然病变数和复发频率是主要预测因素,但IVIM参数为微观结构变化和残疾评估提供了宝贵的见解.
科学领域:
- 放射学和成像学
- 神经学
- 生物医学工程
背景情况:
- 多发性硬化 (MS) 是一种慢性神经疾病,其特征是组织微观结构变化和临床残疾.
- 量化静脉内不连贯运动 (IVIM) 图像提供扩散和 perfusion 衍生的指标以评估组织微观结构的非侵入性.
- 目前用于评估多发性硬化症的方法可以通过先进的成像技术来补充.
研究的目的:
- 研究IVIM参数 (ADC,D,D*) 与复发性复发性多发性硬化症患者的残疾状态 (EDSS) 的相关性和预测值.
- 确定多发性硬化症患者扩大残疾状况评分的独立预测因素.
- 探索IVIM生物标志物与临床数据一起用于残疾评估的实用性.
主要方法:
- 使用1.5T扫描仪对197名复发性缓解性多发性硬化症患者的MRI数据进行了回顾性分析.
- 量化IVIM参数的提取:表面扩散系数 (ADC),真扩散系数 (D),伪扩散系数 (D*) 和 perfusion 分数 (f).
- 两变量分析,皮尔森相关性和多重线性回归以评估IVIM指标,临床变量和EDSS得分之间的关联.
主要成果:
- 老年患者,疾病持续时间较长的患者和需要移动辅助的患者的IVIM参数 (ADC,D,D*) 和EDSS都较高.
- 多发性硬化病变和复发的数量被确定为EDSS评分的独立预测指标.
- IVIM指标显示与残疾有意义的相关性,支持它们在检测微观结构变化的作用.
结论:
- IVIM成像用于检测与多发性硬化相关的微观结构变化.
- 虽然损伤负荷和复发频率是EDSS的主要预测指标,但IVIM指标提供了补充信息.
- 将IVIM生物标志物与临床数据结合起来,可以更好地评估MS患者的残疾.
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