ROI location in three different slices (A, B and C) in anatomic images.

<p>TR = 1100 ms, TE = 50 ms, field-of-view (FOV) = 280×280 mm, acquisition matrix = 256×256 1: Substantia nigra pars reticulata (SNr). 2: Substantia nigra pars compacta (SNc). 3: rostral putamen (rPut). 4: caudal putamen (cPut). 5: Globus Pallidus (GP). 6: gray matter (GM). 7: white matter (WM).