• Department of Encephalopathy (III), Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R.China;
TIAN Jinzhou, Email: jztian@hotmail.com
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Objective To systematically review the diagnostic value of FDG-PET, Aβ-PET and tau-PET for Alzheimer ’s disease (AD).Methods PubMed, EMbase, The Cochrane Library, CNKI, WanFang Data, VIP and CBM databases were electronically searched to collect diagnostic tests of FDG-PET, Aβ-PET and tau-PET for AD from January 2000 to February 2020. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies; then, meta-analysis was performed by Meta-Disc 1.4 and Stata 14.0 software.Results A total of 31 studies involving 3 718 subjects were included. The results of meta-analysis showed that, using normal population as control, the sensitivity/specificity of FDG-PET and Aβ-PET in diagnosing AD were 0.853/0.734 and 0.824/0.771, respectively. Only 2 studies were included for tau-PET and meta-analysis was not performed.Conclusions FDG-PET and Aβ-PET can provide good diagnostic accuracy for AD, and their diagnostic efficacy is similar. Due to limited quality and quantity of the included studies, more high quality studies are required to verify the above conclusions.

Citation: XU Xiaoqing, SHI Jing, ZHOU Yingyi, NI Jingnian, YANG Fan, TIAN Jinzhou. The diagnostic value of positron emission tomography in Alzheimer’s disease: a meta-analysis. Chinese Journal of Evidence-Based Medicine, 2021, 21(1): 47-54. doi: 10.7507/1672-2531.202005053 Copy

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