Advanced brain aging in multiple system atrophy compared to Parkinson’s disease

Autor: Chang-Le Chen, Ming-Che Kuo, Wen-Chau Wu, Yung-Chin Hsu, Ruey-Meei Wu, Wen-Yih Isaac Tseng
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: NeuroImage: Clinical, Vol 34, Iss , Pp 102997- (2022)
Druh dokumentu: article
ISSN: 2213-1582
DOI: 10.1016/j.nicl.2022.102997
Popis: Multiple system atrophy (MSA) and Parkinson’s disease (PD) belong to alpha-synucleinopathy, but they have very different clinical courses and prognoses. An imaging biomarker that can differentiate between the two diseases early in the disease course is desirable for appropriate treatment. Neuroimaging-based brain age paradigm provides an individualized marker to differentiate aberrant brain aging patterns in neurodegenerative diseases. In this study, patients with MSA (N = 23), PD (N = 33), and healthy controls (N = 34; HC) were recruited. A deep learning approach was used to estimate brain-predicted age difference (PAD) of gray matter (GM) and white matter (WM) based on image features extracted from T1-weighted and diffusion-weighted magnetic resonance images, respectively. Spatial normative models of image features were utilized to quantify neuroanatomical impairments in patients, which were then used to estimate the contributions of image features to brain age measures. For PAD of GM (GM-PAD), patients with MSA had significantly older brain age (9.33 years) than those with PD (0.75 years; P = 0.002) and HC (-1.47 years; P
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