February 1995  (Above)

 Severely decreased metabolic activity in bilateral frontal lobes. Frontal to parietal lobe difference is greater than 35%


 March 1997 - After Ritalin therapy (Above)

There is symmetric distribution of FDG in both hemispheres. Slightly increased metabolic activity in the frontal lobes compared to the parietal lobes.

Attention Deficit Disorder- 11 year old female