多参数MRI的附加值结合了动态对比增强和扩散加权成像,以确定甲状腺相关的眼科医生活动
Xiong-Ying Pu1, Ying Wan1, Huan-Huan Chen2
1Department of Radiology, The First Affiliated Hospital With Nanjing Medical University, Nanjing, China.
European radiology
|January 23, 2026
概括
动态对比增强型MRI和扩散权重成像显示在评估甲状腺相关眼科医症 (TAO) 活动方面具有前景. 这些先进的MRI技术为改善TAO分期提供了对标准成像的附加值.
科学领域:
- 眼科医生 眼科 眼科
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 甲状腺相关的眼科医症 (TAO) 是一种自身免疫性疾病,影响眼睛肌肉,经常导致视力受损.
- 脂肪抑制T2加权成像 (FS-T2WI) 通常用于TAO评估,但其诊断性能可能有限.
- 精确的TAO分期对于有效的治疗规划和管理至关重要.
研究的目的:
- 评估动态对比增强核磁共振 (DCE-MRI) 和扩散权重成像 (DWI) 在确定TAO疾病活性方面的有效性.
- 评估DCE-MRI和DWI对FS-T2WI的附加值,以改善TAO分期.
- 识别可独立预测TAO活动的成像参数.
主要方法:
- 72名TAO患者 (48名活跃,24名不活跃) 接受了DCE-MRI,DWI和FS-T2WI.
- 在FS-T2WI上计算了DCE-MRI衍生的Ktrans,Kep和Ve的组图参数 (最小,平均,最大),明显扩散系数 (ADC) 和信号强度比率 (SIR) 对外眼肌进行了计算.
- 进行多变量和ROC分析以确定TAO活动的预测因素,并比较成像技术的性能.
主要成果:
- 与不活跃的患者相比,活跃的TAO患者的平均/最大Ve,最小/平均/最大ADC和最小/平均/最大SIR显著更高 (p<0.05).
- 平均SIR,平均ADC和平均Ve被确定为活性TAO的独立预测指标.
- 与单独平均SIR相比,平均Ve,平均ADC和平均SIR的组合在TAO分期中表现优越 (AUC0.839对0.769,p=0.016).
结论:
- DCE-MRI和DWI在确定TAO疾病活动方面是有效的.
- 这些先进的MRI技术为TAO分期的FS-T2WI提供了显著的附加值.
- DCE-MRI和DWI参数的组合提供了对TAO活动的更全面的评估.
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