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Volumetric analysis of the substantia innominata in patients with Parkinson's disease according to cognitive status

 Seo Hee Choi  ;  Tae Min Jung  ;  Ji E. Lee  ;  Seung-Koo Lee  ;  Young H. Sohn  ;  Phil Hyu Lee 
 Neurobiology of Aging, Vol.33(7) : 1265-1272, 2012 
Journal Title
 Neurobiology of Aging 
Issue Date
The cholinergic system arising from the substantia innominata (SI) of the basal forebrain has an important role in the cognitive functions of Parkinson's disease (PD). We performed magnetic resonance imaging based volumetric analysis to evaluate the SI volume in patients with PD-intact cognition (PD-IC), PD-mild cognitive impairment (PD-MCI), and PD dementia (PDD). The mean normalized SI volume was significantly decreased in patients with PD-IC (1.54 ± 0.12, p < 0.001), PD-MCI (1.49 ± 0.12, p < 0.001), and PDD (1.39 ± 0.12, p < 0.001) compared with that of control subjects (1.68 ± 0.11). The normalized SI volume did not differ between patients with PD-IC and PD-MCI; however, the normalized SI volume was significantly decreased in patients with PDD compared with that in those with PD-IC (p < 0.001) or PD-MCI (p = 0.016). The normalized SI volume was significantly correlated with general cognitive status (r = 0.51, p < 0.001) as well as with performance in each cognitive subdomain, with a particularly significant independent association with attention (β = 0.33, p = 0.003) and object naming (β = 0.26, p = 0.017). The present study demonstrated that the SI volume in PD differs depending on cognitive status and is significantly correlated with cognitive performance.
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1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
손영호(Sohn, Young Ho) ORCID logo https://orcid.org/0000-0001-6533-2610
이승구(Lee, Seung Koo) ORCID logo https://orcid.org/0000-0001-5646-4072
이지은(Lee, Ji Eun)
이필휴(Lee, Phil Hyu) ORCID logo https://orcid.org/0000-0001-9931-8462
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