Amyloid Imaging with 18F-Florbetaben in Alzheimer Disease and Other Dementias

Journal of Nuclear Medicine

Victor L. Villemagne¹  J. Gordon Chan¹  Uwe Ackerman¹  Graeme O'Keefe¹  Kevin Ong¹  Barbara Putz¹  Gareth Jones¹  Gerhard Holl¹  Christopher C. Rowe¹  Cornelia B. Reininger¹  Colin L. Masters¹  Rachel S. Mulligan¹  Beate Rohde¹  Svetlana Pejoska¹  Henri Tochon-Danguy¹  Lueder Fels¹ 

关键词: Alzheimer disease;    amyloid imaging;    Aβ;    positron emission tomography;    frontotemporal dementia;    dementia with Lewy bodies;    neurodegenerative disorders;   

DOI  :  10.2967/jnumed.111.089730

学科分类：医学（综合）

来源: Society of Nuclear Medicine

【 摘 要 】

Amyloid imaging with 18F-labeled radiotracers will allow widespread use, facilitating research, diagnosis, and therapeutic development for Alzheimer disease. The purpose of the study program was to compare cortical amyloid deposition using 18F-florbetaben and PET in controls and subjects with mild cognitive impairment (MCI), frontotemporal lobar degeneration (FTLD), dementia with Lewy bodies (DLB), vascular dementia (VaD), Parkinson disease (PD), and Alzheimer disease (AD). Methods: One hundred nine subjects in 3 clinical studies at Austin Health were reviewed: 32 controls, 20 subjects with MCI, and 30 patients with AD, 11 with FTLD, 7 with DLB, 5 with PD, and 4 with VaD underwent PET after intravenous injection of 300 MBq of 18F-florbetaben. Standardized uptake value ratios (SUVR) using the cerebellar cortex as a reference region were calculated between 90 and 110 min after injection. Results: When compared with the other groups, AD patients demonstrated significantly higher SUVRs (P < 0.0001) in neocortical areas. Most AD patients (96%) and 60% of MCI subjects showed diffuse cortical 18F-florbetaben retention. In contrast, only 9% of FTLD, 25% of VaD, 29% of DLB, and no PD patients and 16% of controls showed cortical binding. Although there was a correlation between Mini Mental State Examination and β-amyloid burden in the MCI group, no correlation was observed in controls, FTLD or AD. Conclusion: 18F-florbetaben had high sensitivity for AD, clearly distinguished patients with FTLD from AD, and provided results comparable to those reported with 11C-Pittsburgh Compound B in a variety of neurodegenerative diseases.

【 授权许可】

Unknown