Objective: The authors examined whether there are abnormalities in hig
h-energy phosphorous metabolism in the basal ganglia of schizophrenic
patients. Method: In vivo P-31 magnetic resonance spectroscopic imagin
g was performed on 18 chronic schizophrenic patients and 16 healthy co
mparison subjects. The percentages of total phosphorous signal for pho
sphomonoesters, inorganic phosphate, phosphodiesters, phosphocreatine,
and beta-ATP were calculated. Results: The mean percentages of beta-A
TP signal in the right and left basal ganglia were significantly lower
for the schizophrenic patients than for the comparison group. No othe
r group differences in phosphorous metabolites and no lateral asymmetr
ies in the schizophrenic group were noted. Conclusions: This prelimina
ry study provides support for abnormal high-energy phosphorous metabol
ism in the basal ganglia of schizophrenic patients.