Table 1.

Parameters for choosing MRI Scans from the PPMI Study.

Imaging Protocol	Values
Modality	MRI
Research Group	Control, Prodromal and PD
Visit	Baseline
Acquisition Plane	Sagittal
Acquisition Type	3D
Field Strength	3.0 Tesla
Flip Angle	9 Degree
Scanner Manufacturing	Siemens (MPRAGE)
Pixel Spacing	0.9 mm–1.5 mm (X &Y)
Slice Thickness	1.0 mm
Weighting	T1