Figure 1.

The dynamic PET images of a 73-year-old patient with Parkinson's disease were reconstructed, and the maximum intensity projection of the total body uptake at specific time points was generated (A). First, a duration of 5-10 s indicates the ¹¹C-CFT injection and a duration of 45-50 s reflects the distribution in the systemic and pulmonary circulation. A duration of 105-110 s indicates high uptake in the thyroid, while a duration of 360-390 s illustrates the descent of the pulmonary circulation. A duration of 900-960 s indicates high uptake in the liver. Additionally, the cerebral transverse-sectional PET images of the basal ganglia plane displayed the selected time points (B), including a duration of 105-110 s indicating the background uptake of the brain without developing the striatum image. A duration of 360-390 s showed an initial uptake in the striata, followed by a clear outline of the striata at 1,260-1,320 s. Finally, 2,040-2,100 s showed high uptake in the striata.