18F‐Florzolotau Tau Positron Emission Tomography Imaging in Patients with Multiple System Atrophy–Parkinsonian Subtype

正电子发射断层摄影术 萎缩 正电子发射 核医学 医学 内科学 中枢神经系统疾病 Tau病理学 病理 阿尔茨海默病 疾病
作者
Fengtao Liu,Xinyi Li,Jiaying Lu,Ping Wu,Ling Li,Xiaoniu Liang,Zizhao Ju,Fangyang Jiao,Mingjia Chen,Jingjie Ge,Yi‐Min Sun,Jian Wu,Tzu‐Chen Yen,Jianfeng Luo,Chuantao Zuo,Jian Wang
出处
期刊:Movement Disorders [Wiley]
卷期号:37 (9): 1915-1923 被引量:17
标识
DOI:10.1002/mds.29159
摘要

ABSTRACT Background Anecdotal evidence suggests that patients diagnosed with the parkinsonian subtype of multiple system atrophy (MSA‐P) may show uptake of the second‐generation tau positron emission tomography (PET) tracer 18 F‐Florzolotau (previously known as 18 F‐APN‐1607) in the putamen. Objectives This study systematically investigated the localization and magnitude of 18 F‐Florzolotau uptake in a relatively large cohort of patients with MSA‐P. Methods 18 F‐Florzolotau PET imaging was performed in 31 patients with MSA‐P, 24 patients with Parkinson's disease (PD), and 20 age‐matched healthy controls. 18 F‐Florzolotau signal in the striatum was analyzed by visual inspection and classified as either positive or negative. Regional 18 F‐Florzolotau binding was also expressed as standardized uptake value ratio (SUVR) to assess whether it was associated with core symptoms of MSA‐P after adjustment for potential confounders. Results By visual inspection and semiquantitative SUVR comparisons, patients with MSA‐P showed elevated 18 F‐Florzolotau uptake in the putamen, globus pallidus, and dentate—a finding that was not observed in PD. This increased signal was significantly associated with the core symptoms of MSA‐P. In addition, patients with MSA‐P with cerebellar ataxia showed an elevated 18 F‐Florzolotau uptake in the cerebellar dentate. Conclusions 18 F‐Florzolotau tau PET imaging findings may reflect the clinical severity of MSA‐P and can potentially discriminate between this condition and PD. © 2022 International Parkinson and Movement Disorder Society.
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