Evaluation of White Matter Integrity by Using Diffusion Tensor Imaging in Patients with Presbycusis.

Autor:	Polat YB; Department of Radiology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Fatih, Turkey (Y.B.P., B.A., H.O., U.E.K., S.B., A.A.). Electronic address: yagmurbasakkilinc@gmail.com., Atasoy B; Department of Radiology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Fatih, Turkey (Y.B.P., B.A., H.O., U.E.K., S.B., A.A.)., Ozdemir H; Department of Radiology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Fatih, Turkey (Y.B.P., B.A., H.O., U.E.K., S.B., A.A.)., Ozturan O; Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Fatih, Turkey (O.O., E.P.)., Polat E; Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Fatih, Turkey (O.O., E.P.)., Karabulut UE; Department of Radiology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Fatih, Turkey (Y.B.P., B.A., H.O., U.E.K., S.B., A.A.)., Balsak S; Department of Radiology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Fatih, Turkey (Y.B.P., B.A., H.O., U.E.K., S.B., A.A.)., Alkan A; Department of Radiology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Fatih, Turkey (Y.B.P., B.A., H.O., U.E.K., S.B., A.A.).
Jazyk:	angličtina
Zdroj:	Academic radiology [Acad Radiol] 2024 Nov 26. Date of Electronic Publication: 2024 Nov 26.
DOI:	10.1016/j.acra.2024.11.013
Abstrakt:	Rationale and Objectives: This study aims to evaluate white matter microstructure integrity in patients diagnosed with presbycusis (age-related hearing loss) using diffusion tensor imaging (DTI) and to investigate the relationship between DTI parameters and hearing loss severity. Materials and Methods: Patients aged 50 and above with presbycusis (pure-tone average [PTA] ≥20dB) were categorized as mild (PTA 20-34dB), moderate (PTA 35-49dB), or severe (PTA ≥50dB). Fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) were measured in 16 white matter regions. The relationship between DTI parameters and speech discrimination scores was assessed using multiple linear regression, adjusting for age, sex, and vascular risk profile. Results: The study included 148 patients (mild=32, moderate=84, severe=32). DTI analysis showed significantly lower FA in the left cingulum (p = 0.001) and right IFOF (p = 0.003) in the severe group compared to the mild and moderate groups, while RD in the left cingulum was higher in the severe group (p = 0.006). The mild group exhibited significantly lower left IFOF RD (p < 0.001) compared to the moderate and severe groups, and significantly lower left cingulum body MD (p = 0.004) compared to the severe group. Significant associations were found between speech discrimination scores and DTI parameters, including right hippocampal cingulum MD (p = 0.030), left IFOF RD (p = 0.033), right Heschl's gyrus MD (p = 0.018), and AD (p = 0.008). Conclusion: This study demonstrated significant alterations in white matter microstructure across different severities of presbycusis. Further research is needed to fully understand the cognitive and central auditory dysfunctions associated with presbycusis. Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2024 The Association of University Radiologists. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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