放射科医生评分用于使用新型分析方法对内素不连贯运动进行比较定性评估
Esha Baidya Kayal1, Devasenathipathy Kandasamy2, Richa Yadav2
1From the Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi, India.
Journal of computer assisted tomography
|September 1, 2023
概括
新的intravoxel不连贯运动 (IVIM) 分析方法,BE + TV和BE + HPF,显著提高了骨髓瘤患者的扩散系数 (D), perfusion 分数 (f) 和 perfusion 系数 (D*) 的定性解释性和定量精度.
科学领域:
- 放射学和医学成像学 医学成像学
- 生物医学工程 生物医学工程
- 在瘤学瘤学.
背景情况:
- 内素不连贯运动 (IVIM) 图像提供了对组织微循环的洞察.
- 准确估计IVIM参数对于诊断应用至关重要.
- 现有的IVIM分析方法在解释性和可重复性方面可能存在局限性.
研究的目的:
- 评估新的IVIM分析方法的定性解释性和定量精度.
- 为了比较五种不同的IVIM分析方法的诊断准确性.
- 评估IVIM参数估计在骨髓瘤患者中的可重复性.
主要方法:
- 分析了来自55名骨髓瘤患者的IVIM数据集.
- 使用五种IVIM分析方法估计扩散系数 (D), perfusion 分数 (f) 和 perfusion 系数 (D*):比位数 (BE),BE 分段合适 2-参数 (BESeg-2),BE 分段合适 1-参数 (BESeg-1),BE + 总变化 (BE + TV) 和BE + 休伯惩罚函数 (BE + HPF).
- 使用五分利克尔特尺度进行定性评估,使用变化系数 (CV) 进行精度和可重复性的定量评估.
主要成果:
- 与其他方法相比,BE + TV 和 BE + HPF 对 D,f 和 D* 的定性得分明显更高.
- 在估计D,f和D*时,BE + TV和BE + HPF显著提高了可重复性.
- 观察者之间对定性评分的共识在rs = 0.48-0.59.9之间.
结论:
- BE + TV 和 BE + HPF 方法为 IVIM 参数估计提供了卓越的定性解释性和定量精度.
- 这些先进的IVIM分析技术在骨髓瘤诊断和管理中显示出临床应用的前景.
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