Zhou L, Tian N, Geng ZJ, Wu BK, Dong LY, Wang MR. Diffusion tensor imaging study of brain precentral gyrus and postcentral gyrus during normal brain aging process.
Brain Behav 2020;
10:e01758. [PMID:
32844600 PMCID:
PMC7559610 DOI:
10.1002/brb3.1758]
[Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE
To study the changes of white matter tracts in precentral gyrus and postcentral gyrus during normal brain aging process by analyzing fractional anisotropy (FA) values obtained from diffusion tensor imaging (DTI) technology.
METHODS
Magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) were conducted on 120 healthy right-handed subjects. The subjects were separated into four age groups, namely Young Male/Female (<45 years old) and Senior Male/Female (>45 years old). Each subject undertakes routine MRI and DTI scans. Left/right precentral and left/right postcentral gyrus are automatically detected on the image. The area for region of interest (ROI) is set to be 18 ± 2 mm2 .
RESULTS
For each age group, the FA values of white matter in precentral gyrus and postcentral gyrus are statistically different (p < .05) in both left and right sides of the brain across different age groups and genders. Additionally, the FA values are statistically different (p < .05) between two young and senior age groups across different genders, brain regions, and hemispheres.
CONCLUSION
The FA values of precentral gyrus and postcentral gyrus are statistically different across genders, age groups, and hemispheres. Additionally, the FA values of both precentral gyrus and postcentral gyrus decrease over time, which is a strong indication of aging.
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