Novel spatial analysis method for PET images using 3D moment invariants: Applications to Parkinson's disease. - Marjorie E. Gonzalez; Katherine Dinelle; Nasim Vafai; Nicole Heffernan; Jess McKenzie; Silke Appel-Cresswell; Martin J. McKeown; A. Jon Stoessl; Vesna Sossi (NeuroImage, 2013)