Neuromelanin imaging outperforms free water imaging in diagnosing early Parkinson's disease: a comparative MRI study.

NPJ Parkinsons Dis · 2026 · PMC13013584 · PMID 41688474

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did not reach statistical significanceno p-value reported

FW values in the total SN and other subregions were higher in early PD but did not reach statistical significance.

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