18F-THK5351 PET imaging in patients with progressive supranuclear palsy: associations with core domains and diagnostic certainty.

Abstract:

:The associations of 18F-THK5351 tau positron emission tomography (PET) findings with core domains of progressive supranuclear palsy (PSP) and its diagnostic certainty have yet to be fully elucidated. The 18F-THK5351 PET patterns of 17 patients with PSP (68.9 ± 6.5 years; 8 women) were compared with those observed in 28 age-matched and sex-matched (66.2 ± 4.5 years, 18 women) control subjects (CS). Tracer accumulation-as reflected by standardized uptake value ratios (SUVRs) and z-scores-was correlated with core domains of PSP and different levels of diagnostic certainty. Compared with CS, patients with PSP showed an increased 18F-THK5351 uptake in the globus pallidus and red nucleus. Patients with PSP and oculomotor dysfunction had significantly higher SUVRs in the midbrain, red nucleus, and raphe nucleus than those without. In addition, cases who meet criteria for level 1 (highest) certainty in the postural instability domain showed significantly higher SUVRs in the frontal, parietal, precuneus, and sensory-motor cortex. Patients with probable PSP had significantly higher SUVR values than those with possible PSP in multiple cortical (i.e., frontal, parietal, temporal, anterior cingulate gyrus, precuneus, and sensory-motor gyrus) and subcortical (i.e., putamen, thalamus, and raphe nucleus) regions. Patterns of 18F-THK5351 uptake were correlated to core domains of PSP-including oculomotor dysfunction and postural instability. Moreover, the degree of diagnostic certainty for PSP was appreciably associated with 18F-THK5351 PET findings.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Hsu JL,Chen SH,Hsiao IT,Lu CS,Yen TC,Okamura N,Lin KJ,Weng YH

doi

10.1038/s41598-020-76339-0

subject

Has Abstract

pub_date

2020-11-10 00:00:00

pages

19410

issue

1

issn

2045-2322

pii

10.1038/s41598-020-76339-0

journal_volume

10

pub_type

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