Structural abnormalities in gray matter, white matter, and cerebrospinal fluid in parkinson's disease: a voxel-based morphometry study.
OBJECTIVE Parkinson's disease (PD) is a neurodegenerative disorder affecting multiple brain systems, yet whole-brain structural changes remain incompletely characterized. We used voxel-based morphometry (VBM) to systematically quantify gray matter (GM), white matter (WM), and cerebrospinal fluid (CSF) volume alteration...