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机器学习优化组合式MRI尺度 (COMRISv2) 与多发性硬化症患者的认知和身体残疾尺度高度相关
Erin Kelly1, Mihael Varosanec1, Peter Kosa1
1Neuroimmunological Diseases Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States.
Frontiers in radiology
|July 26, 2023
概括
这项研究开发了COMRISv2,一种使用机器学习的高级MRI尺度,以更好地预测多发性硬化症 (MS) 的残疾. 通过结合定量MRI数据,COMRISv2改进了以前的方法,提高了临床结果的预测.
科学领域:
- 神经成像是一种神经成像.
- 机器学习 机器学习
- 神经学 神经学
背景情况:
- 复合MRI尺度与多发性硬化症 (MS) 的临床结果的相关性比单个措施更好.
- 之前的工作开发了使用半定量MRI (半-qMRI) 生物标志物的组合MRI尺度 (COMRISv1).
- 使用定量MRI (qMRI) 和先进的ML算法来改进预测的潜力仍然需要充分探索.
研究的目的:
- 开发和验证一个改进的复合MRI尺度 (COMRISv2),用于预测MS患者的临床结果.
- 与COMRISv1.1相比,评估定量MRI (qMRI) 体积特征的附加值和更强大的ML算法.
- 评估COMRISv2在预测MS认知和身体残疾方面的表现.
主要方法:
- 预期从多发性硬化症患者获取脑部MRI数据和临床评估,分为培训 (n=172) 和验证 (n=83) 队列.
- 利用NeurExTM应用程序自动计算神经学检查的残疾等级和qMRI特征提取的损伤-TOADS算法.
- 采用修改的随机森林管道来选择最佳生物标志物并开发COMRISv2模型,随后对预测准确性进行验证.
主要成果:
- COMRISv2模型显示了与认知障碍的中等相关性 (斯皮尔曼Rho=0.674,CCC=0.458) 和与身体障碍的强烈相关性 (斯皮尔曼Rho=0.830-0.852,CCC=0.789-0.823).
- 结合NeurExTM数据的模型产生了最强的预测性能.
- 包括qMRI特征特别增强了认知障碍的预测,这表明半-qMRI在下肢损伤评估中的准确性.
结论:
- 康里斯v2模型在预测MS患者颗粒性临床尺度方面表现出了显著的标准有效性.
- 整合qMRI和先进的ML算法显著提高了复合MRI尺度对MS残疾的预测能力.
- 通过提供可靠的结果预测,COMRISv2扩大了MS研究队列的科学实用性,特别是那些具有不完整临床数据的队列.
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