RT Journal Article
SR Electronic
T1 Brain Abnormalities in Becker Muscular Dystrophy: Evaluation by Voxel-Based DTI and Morphometric Analysis
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1405
OP 1410
DO 10.3174/ajnr.A8041
VO 44
IS 12
A1 Maki, Hiroyuki
A1 Mori-Yoshimura, Madoka
A1 Matsuda, Hiroshi
A1 Hashimoto, Yasumasa
A1 Ota, Miho
A1 Kimura, Yukio
A1 Shigemoto, Yoko
A1 Ishihara, Naoko
A1 Kan, Hirohito
A1 Chiba, Emiko
A1 Arizono, Elly
A1 Yoshida, Sumiko
A1 Takahashi, Yuji
A1 Sato, Noriko
YR 2023
UL http://www.ajnr.org/content/44/12/1405.abstract
AB BACKGROUND AND PURPOSE: Although various neuropsychological problems in Becker muscular dystrophy have attracted attention, there have been few related neuroimaging studies. We investigated brain abnormalities in patients with Becker muscular dystrophy using 3D T1WI and DTI.MATERIALS AND METHODS: MR images were obtained for 30 male patients and 30 age-matched healthy male controls. We classified patients into Dp140+ and Dp140− subgroups based on their predicted dystrophin Dp140 isoform expression and performed voxel-based comparisons of gray and white matter volumes and DTI metrics among the patients, patient subgroups, and controls. ROI-based DTI analyses were also performed.RESULTS: Significantly decreased fractional anisotropy was observed in the left planum temporale and right superior parietal lobule compared between the Becker muscular dystrophy and control groups. In the Dp140− subgroup, decreased fractional anisotropy was observed in the left planum temporale, but no significant changes were seen in the Dp140+ subgroup. The ROI-based analysis obtained the same results. No significant differences were evident in the gray or white matter volumes or the DTI metrics other than fractional anisotropy between the groups.CONCLUSIONS: A DTI metric analysis is useful to detect white-matter microstructural abnormalities in Becker muscular dystrophy that may be affected by the Dp140 isoform expression.ADaxial diffusivityBMDBecker muscular dystrophyDARTELDiffeomorphic Anatomical Registration Through Exponentiated Lie AlgebraDMDDuchenne muscular dystrophyFAfractional anisotropyIQintelligence quotientMDmean diffusivityRDradial diffusivityVBMvoxel-based morphometryWAISWechsler Adult Intelligence Scale