Journal
REVIEWS IN THE NEUROSCIENCES
Volume 30, Issue 7, Pages 743-756Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/revneuro-2018-0061
Keywords
biomarker; diagnostic accuracy; F-18-FDG PET; Parkinson's disease; parkinsonism
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Funding
- National Key R&D Program of China [2017YFC1310300]
- National Natural Science Foundation of China [10.13039/501100001809, 81673726]
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A large number of articles have assessed the diagnostic accuracy of the metabolic pattern analysis of [F-18]fluorodeoxyglucose (F-18-FDG) positron emission tomography (PET) in Parkinson's disease (PD); however, different studies involved small samples with various controls and methods, leading to discrepant conclusions. This study aims to consolidate the available observational studies and provide a comprehensive evaluation of the clinical utility of F-18-FDG PET for PD. The methods included a systematic literature search and a hierarchical summary receiver operating characteristic approach. Sensitivity analyses according to different pattern analysis methods (statistical parametric mapping versus scaled subprofile modeling/principal component analysis) and control population [healthy controls (HCs) versus atypical parkinsonian disorder (APD) patients] were performed to verify the consistency of the main results. Additional analyses for multiple system atrophy (MSA) and progressive supranuclear palsy (PSP) were conducted. Fifteen studies comprising 1446 subjects (660 PD patients, 499 APD patients, and 287 HCs) were included. The overall diagnostic accuracy of F-18-FDG in differentiating PD from APDs and HCs was quite high, with a pooled sensitivity of 0.88 [95% confidence interval (95% CI), 0.85-0.91] and a pooled specificity of 0.92 (95% CI, 0.89-0.94), with sensitivity analyses indicating statistically consistent results. Additional analyses showed an overall sensitivity and specificity of 0.87 (95% CI, 0.76-0.9/) and 0.93 (95% CI, 0.89-0.96) for MSA and 0.91 (95% CI, 0.78-0.95) and 0.96 (95% CI, 0.92-0.98) for PSP. Our study suggests that the metabolic pattern analysis of F-18-FUG PET has high diagnostic accuracy in the differential diagnosis of parkinsonian disorders.
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