Whole-Brain Structural Connectivity Alterations in Chronic Subjective Tinnitus: An Exploratory Diffusion Tensor Imaging Study

/Objectives: Subjective tinnitus, the underlying mechanism of which remains largely unknown, accounts for the majority of cases. Although conventional MRI and audiometric assessments demonstrate limited effectiveness in identifying organic causes, advanced microstructural techniques-such as diffusion tensor imaging (DTI) and fiber tractography-facilitate the evaluation of microanatomical connectivity related to...

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No actionable change — this exploratory neuroimaging study advances understanding of tinnitus brain mechanisms but does not yet translate into new diagnostic tools or treatments for audiologists.

Identifying whole-brain structural connectivity differences in chronic tinnitus contributes to the growing evidence that tinnitus is a brain-wide network disorder, which may eventually inform neuromodulation or targeted therapy strategies.

1. 01DTI (brain-wiring scan) revealed widespread structural connectivity differences in adults with chronic subjective tinnitus versus healthy controls.
2. 02This is an exploratory study, meaning it generates hypotheses rather than confirming treatment approaches.
3. 03Multiple brain regions showed altered white matter connectivity in tinnitus patients.
4. 04Findings support the view that chronic tinnitus involves broad brain network disruption, not just auditory pathways.
5. 05Sample size and exploratory design limit the strength of conclusions.

PMID

42512512

DOI

10.3390/brainsci16070738.

Journal

Brain Sciences

Publication type

research_article

Evidence level

3

Population

Adults with chronic subjective tinnitus compared to healthy controls

Intervention

Diffusion tensor imaging (DTI) assessment of whole-brain structural connectivity

Comparator

Healthy controls without tinnitus