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Yuna Gu^1,2, Jihwan Yun³, Alexis Moscoso^4,5,6

¹Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, South Korea.

Alzheimer's & dementia : the journal of the Alzheimer's Association

|June 22, 2025

概括

图定子发射断层扫描 (PET) 的视觉和量化方法提供了互补的优势. 量化方法在检测早期tau负担方面表现有前途,与认知衰退相关,提高分期准确性.

科学领域:

神经成像和生物标志物
阿尔茨海默氏症疾病研究研究

背景情况:

对阿尔茨海默病 (AD) 病理学进行准确的分期对于临床试验和患者管理至关重要.
定子发射断层扫描 (PET) 是评估AD中神经纤维状结积累的关键成像方式.

研究的目的:

为了比较TAU PET分期的视觉评估和定量分析方法.
为了评估血生物标志物和认知轨迹跨粉样蛋白和 (AT) 阶段.
在独立的队列中验证发现.

主要方法:

从韩国登记处克服痴呆症和加速痴呆症研究 (K-ROAD) 队列 (n=289) 的Tau PET扫描进行了视觉和定量分析.
验证使用阿尔茨海默病神经成像计划 (ADNI) 队列 (n=870) 进行.
血生物标志物和认知指标在AT阶段进行了评估.

主要成果:

没有部分体积校正 (PVC) 的FreeSurfer显示了视觉阳性检测的最高准确度 (AUC=0.918).
兴趣的时和时区域在中度 (AUC=0.856) 和高级 (AUC=0.828) 分别表现出高性能.
定量方法有效地检测到在中间AT过渡期间酸化tau217的变化,并与认知衰退相关联.

结论:

视觉和定量TAU-PET方法在诊断阿尔茨海默病的病期方面具有互补的优势.
定量方法在早期检测病理方面具有优势,并与血生物标志物和认知衰退相关联.
这些发现在K-ROAD和ADNI群体中都得到了一致的观察,这突显了结果的稳定性.

关键词:

阿尔茨海默病的疾病阿尔茨海默病的疾病.氨酸tau分期的分期认知轨迹的认知轨迹诊断精度诊断精度诊断精度酸化的217 217 酸化的217 血生物标志物血生物标志物量化方法量化方法陶正子发射断层扫描分期测试时间元区域的时间元区域.时间-平行线区域.视觉评估视觉评估视觉评估

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