Figure 5

Examples of changes in ferritin levels and T2* values in two PD patients receiving chelation therapy for 6 months. (A) Plasma ferritin level <100 ng/ml at the beginning of the study (B) plasma ferritin level >300 ng/ml. Ferritin values are denoted by circles, caudate nucleus T2* values by upright triangles, dentate nucleus values by downward triangles and substantia nigra by squares.