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Off-Target (18)F-AV-1451 Binding in the Basal Ganglia Correlates with Age-Related Iron Accumulation

 Jae Yong Choi  ;  Hanna Cho  ;  Sung Jun Ahn  ;  Jae Hoon Lee  ;  Young Hoon Ryu  ;  Myung Sik Lee  ;  Chul Hyoung Lyoo 
 Journal of Nuclear Medicine, Vol.59(1) : 117-120, 2018 
Journal Title
 Journal of Nuclear Medicine 
Issue Date
18F-AV-1451 ; PET ; aging ; basal ganglia ; iron
Off-target binding in the basal ganglia is commonly observed in the (18)F-AV-1451 PET studies of the elderly. We sought to investigate the relationship between this phenomenon in the basal ganglia and iron accumulation using iron-sensitive R2* MRI. Methods: Fifty-nine healthy controls and 61 patients with Alzheimer disease and mild cognitive impairment underwent (18)F-AV-1451 PET and R2* MRI studies. A correlation analysis was performed for age, (18)F-AV-1451 binding, and R2* values. Results: There was an age-related increase in both (18)F-AV-1451 binding in the basal ganglia and R2* values in the putamen in both the controls and the Alzheimer disease/mild cognitive impairment patients. (18)F-AV-1451 binding in the basal ganglia increased with R2* values. Conclusion: Off-target (18)F-AV-1451 binding in the basal ganglia is associated with the age-related increases in iron accumulation. Postmortem studies are required to further investigate the nature of this association.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
Yonsei Authors
Lyoo, Chul Hyoung(류철형) ORCID logo https://orcid.org/0000-0003-2231-672X
Ahn, Sung Jun(안성준) ORCID logo https://orcid.org/0000-0003-0075-2432
Ryu, Young Hoon(유영훈) ORCID logo https://orcid.org/0000-0002-9000-5563
Lee, Myung Sik(이명식) ORCID logo https://orcid.org/0000-0002-8413-1854
Lee, Jae Hoon(이재훈) ORCID logo https://orcid.org/0000-0002-9898-9886
Cho, Hanna(조한나) ORCID logo https://orcid.org/0000-0001-5936-1546
Choi, Jae Yong(최재용)
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