Full text

Turn on search term navigation

Copyright © 2020 E. Li et al. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Background: Freezing of gait (FoG) is a disabling gait disorder that commonly occurs in advanced stages of Parkinson’s disease (PD). The neuroanatomical mechanisms underlying FoG in PD are still unclear. The present study aims to explore alterations of structural gray matter (GM) in PD patients with FoG. Method: Twenty-four PD patients with FoG (FoG+), 37 PD patients without FoG (FoG-) and 24 healthy controls (HC) were included. All subjects underwent a standardized MRI protocol. The cortical thickness (CTh), segmentation volume without ventricles (BrainSegVolNotVent) and estimated total intracranial volume (eTIV) were analysed using the FreeSurfer pipeline. Results: CTh differences were found in the right middle temporal gyrus (rMTG) generally. Compared to that in HCs, the CTh of the rMTG in both the FoG+ and FoG- groups was smaller, while no significant difference between the FoG+ and FoG- groups. Correlation analyses demonstrated a negative correlation between the CTh of the rMTG and the UPDRS part II score in PD subjects, and a borderline significant correlation between the score of Freezing of Gait Questionnaire (FoGQ) and rMTG CTh. Additionally, receiver operating characteristic curve (ROC) analysis revealed a cut-off point of CTh =3.08 mm in the rMTG that could be used to differentiate PD patients and HCs (AUC =0.79, P <0.01). There were no differences in the BrainSegVolNotVent or eTIV among the 3 groups. Conclusions: Our findings currently suggest no significant difference between FoG+ and FoG- patients in terms of structural gray matter changes. However, decreased CTh in the rMTG related to semantic control may be used as a biomarker to differentiate PD patients and HCs.

Details

Title
Exploring Cortical Thickness Alteration in Parkinson Disease Patients with Freezing of Gaits
Author
E Li 1   VIAFID ORCID Logo  ; Ruan, Xiuhang 2   VIAFID ORCID Logo  ; Li, Yuting 2   VIAFID ORCID Logo  ; Zhang, Guoqin 1   VIAFID ORCID Logo  ; Li, Mengyan 3   VIAFID ORCID Logo  ; Wei, Xinhua 4   VIAFID ORCID Logo 

 Department of Radiology, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China 
 Department of Radiology, Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong 510180, China 
 Department of Neurology, Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong 510180, China 
 Department of Radiology, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China; Department of Radiology, Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong 510180, China 
Editor
Hanna Lu
Publication year
2020
Publication date
2020
Publisher
John Wiley & Sons, Inc.
ISSN
20905904
e-ISSN
16875443
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2467507057
Copyright
Copyright © 2020 E. Li et al. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.