阿爾茨海默病多中心獨立的、可重復的海馬影像組學標志物:早期識別、縱向進展和生物學基礎(英文)
發(fā)布時間:2021-05-13 10:51
腦內海馬結構的形態(tài)學變化是阿爾茨海默。ˋD)的影像學標記之一.海馬的影像組學特征是否可以作為AD早期識別的生物標記以及是否可以預測輕度認知損害(MCI)的轉化尚需進一步驗證,并且海馬影像組學特征是否有其神經(jīng)生物學基礎也需要進一步探索.本文的主要目的是研究海馬的影像組學特征是否可以作為AD早期識別的影像學標記.為此,我們利用最常用的多變量分類器對AD(261例)和正常人(231例)進行獨立中心識別的交叉驗證, 6個中心的平均準確率為88.21%,更進一步,利用完全獨立的ADNI數(shù)據(jù)集(1228例被試)也驗證了這一結果.通過對MCI人群的系統(tǒng)研究發(fā)現(xiàn),部分重要海馬影像組學特征與被試的生物學評分(主要包括APOE基因型、多基因風險分數(shù)、腦脊液的生物標記物Aβ和Tau,以及認知能力的變化等)具有顯著的相關性.更為重要的是,通過5年左右的縱向跟蹤研究發(fā)現(xiàn)影像組學特征的變化與認知水平的變化具有高度一致性.本研究結果表明海馬的影像組學特征有希望用于早期識別AD,具有預測MCI病人是否會轉化為AD的潛在能力.綜上,研究結果將有可能應用于MCI和AD的早期輔助識別,具有重要的臨床意義.
【文章來源】:Science Bulletin. 2020,65(13)EISCICSCD
【文章頁數(shù)】:11 頁
【文章目錄】:
1. Introduction
2. Materials and methods
2.1. Subjects
2.2. Hippocampal segmentation and feature extraction
2.3. Redundancy removal and statistical analysis
2.4. Classification analysis,validation and generalizability
2.5. Relationship between radiomic features and cognitive ability,APOE genetics,PGRSs,Ab,Tau,and longitudinal changes in the cognitive abilities in MCI group
2.6. Availability of data and materials
3. Results
3.1. Demographic characteristics and neuropsychological assessment of the groups
3.2. Hippocampal radiomic features differ among the AD,MCI and NC subjects
3.3. Classification performance
3.4. Radiomic features and cognitive ability,APOE genotype,Ab,Tau,and longitudinal cognitive changes in the MCI subjects
4. Discussion
5. Limitations and caveats
6. Conclusion
Conflict of interest
Author contributions
Appendix A.Supplementary materials
【參考文獻】:
期刊論文
[1]ASAF: altered spontaneous activity fingerprinting in Alzheimer’s disease based on multisite fMRI[J]. Jiachen Li,Dan Jin,Ang Li,Bing Liu,Chengyuan Song,Pan Wang,Dawei Wang,Kaibin Xu,Hongwei Yang,Hongxiang Yao,Bo Zhou,Alexandre Bejanin,Gael Chetelat,Tong Han,Jie Lu,Qing Wang,Chunshui Yu,Xinqing Zhang,Yuying Zhou,Xi Zhang,Tianzi Jiang,Yong Liu,Ying Han. Science Bulletin. 2019(14)
本文編號:3183883
【文章來源】:Science Bulletin. 2020,65(13)EISCICSCD
【文章頁數(shù)】:11 頁
【文章目錄】:
1. Introduction
2. Materials and methods
2.1. Subjects
2.2. Hippocampal segmentation and feature extraction
2.3. Redundancy removal and statistical analysis
2.4. Classification analysis,validation and generalizability
2.5. Relationship between radiomic features and cognitive ability,APOE genetics,PGRSs,Ab,Tau,and longitudinal changes in the cognitive abilities in MCI group
2.6. Availability of data and materials
3. Results
3.1. Demographic characteristics and neuropsychological assessment of the groups
3.2. Hippocampal radiomic features differ among the AD,MCI and NC subjects
3.3. Classification performance
3.4. Radiomic features and cognitive ability,APOE genotype,Ab,Tau,and longitudinal cognitive changes in the MCI subjects
4. Discussion
5. Limitations and caveats
6. Conclusion
Conflict of interest
Author contributions
Appendix A.Supplementary materials
【參考文獻】:
期刊論文
[1]ASAF: altered spontaneous activity fingerprinting in Alzheimer’s disease based on multisite fMRI[J]. Jiachen Li,Dan Jin,Ang Li,Bing Liu,Chengyuan Song,Pan Wang,Dawei Wang,Kaibin Xu,Hongwei Yang,Hongxiang Yao,Bo Zhou,Alexandre Bejanin,Gael Chetelat,Tong Han,Jie Lu,Qing Wang,Chunshui Yu,Xinqing Zhang,Yuying Zhou,Xi Zhang,Tianzi Jiang,Yong Liu,Ying Han. Science Bulletin. 2019(14)
本文編號:3183883
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