J Korean Soc Radiol.  2022 May;83(3):453-472. 10.3348/jksr.2022.0052.

Recent Updates on PET Imaging in Neurodegenerative Diseases

  • 1Department of Nuclear Medicine, Seoul National University Boramae Medical Center, Seoul, Korea.


Over the past decades, the immense clinical need for early detection methods and treatments for dementia has become a priority worldwide. The advances in PET biomarkers play increasingly important roles in understanding disease mechanisms by demonstrating the protein pathology underlying dementia in the brain. Amyloid-β and tau deposition in PET images are now key diagnostic biomarkers for the Alzheimer’s disease continuum. The inclusion of biomarkers in the diagnostic criteria has achieved a paradigm shift in facilitating early differential diagnosis, predicting disease prognosis, and influencing clinical management. Furthermore, in vivo images showing pathology could become prognostic as well as surrogate biomarkers in therapeutic trials. In this review, we focus on recent developments in radiotracers for amyloid-β and tau PET imaging in Alzheimer’s disease and other neurodegenerative diseases. Further, we introduce their potential application as future perspectives.


Alzheimer’s Disease; Amyloid; Tauopathies; Positron Emission Tomography
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