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Morphometry of medial temporal lobe subregions using high-resolution T2-weighted MRI in ADNI3: Why, how, and what's next?
Alzheimer's & Dementia ( IF 13.0 ) Pub Date : 2024-09-16 , DOI: 10.1002/alz.14161
Paul A. Yushkevich, Ranjit Ittyerah, Yue Li, Amanda E. Denning, Niyousha Sadeghpour, Sydney Lim, Emily McGrew, Long Xie, Robin DeFlores, Christopher A. Brown, Laura E. M. Wisse, David A. Wolk, Sandhitsu R. Das

This paper for the 20th anniversary of the Alzheimer's Disease Neuroimaging Initiative (ADNI) provides an overview of magnetic resonance imaging (MRI) of medial temporal lobe (MTL) subregions in ADNI using a dedicated high-resolution T2-weighted sequence. A review of the work that supported the inclusion of this imaging modality into ADNI Phase 3 is followed by a brief description of the ADNI MTL imaging and analysis protocols and a summary of studies that have used these data. This review is supplemented by a new study that uses novel surface-based tools to characterize MTL neurodegeneration across biomarker-defined AD stages. This analysis reveals a pattern of spreading cortical thinning associated with increasing levels of tau pathology in the presence of elevated amyloid beta, with apparent epicenters in the transentorhinal region and inferior hippocampal subfields. The paper concludes with an outlook for high-resolution imaging of the MTL in ADNI Phase 4.

中文翻译:


在 ADNI3 中使用高分辨率 T2 加权 MRI 对内侧颞叶亚区进行形态测量:为什么、如何以及下一步是什么?



这篇为纪念阿尔茨海默病神经影像学计划 (ADNI) 成立 20 周年的论文概述了使用专用的高分辨率 T2 加权序列对 ADNI 中侧颞叶 (MTL) 亚区的磁共振成像 (MRI)。对支持将这种成像方式纳入 ADNI 第 3 期的工作进行了回顾,然后简要介绍了 ADNI MTL 成像和分析方案,并总结了使用这些数据的研究。本综述由一项新研究补充,该研究使用基于表面的新型工具来表征生物标志物定义的 AD 阶段的 MTL 神经变性。该分析揭示了在 β 淀粉样蛋白升高的情况下与 tau 病理水平增加相关的扩散性皮质变薄模式,明显的震中位于跨鼻区域和下海马亚区。本文总结了 ADNI 第 4 期 MTL 高分辨率成像的前景。
更新日期:2024-09-16
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