A retrospective study to evaluate the ability to differentiate Parkinson's disease and Parkinson's syndrome in patients having dopamine transporter scintigraphy. - A retrospective study to evaluate the ability to differentiate Parkinson's disease and Parkinson's syndrome in patients having dopamine transporter scintigraphy.

The degree of accumulation of Ioflupane in midbrain and pons was stratified into two groups: those with a similar degree of accumulation compared to that in the cerebellum, and those with a higher degree of accumulation than in the cerebellum. The midbrain was highly enriched in all patients with both Parkinson's disease (PD) and Parkinson's syndrome (PS). In pons, both PD and PS tended to be hyper-accumulated. Therefore, PD and PS were similar, and it was impossible to distinguish between them.