Fig. 3.

¹⁸F-BCPP-EF uptake at 3 h and 24 h after QA injection. QA was injected into the striatum on the right side of the image, and saline was simultaneously injected into the contralateral striatum. A PET images of ¹⁸F-BCPP-EF uptake in QA-injected rat brains were superimposed on the MRI atlas images. PET scans were performed for 90 min with ¹⁸F-BCPP-EF, 3 h and 24 h after QA injection. Summation PET images from 45 to 60 min were reconstructed to obtain standardised uptake value (SUV) images. B Radioactivity concentrations for the time period from 45–60 min (SUV). The VOIs were identified based on the whole striatum. Mean ± SD, n = 4. *P < 0.05, between the saline- and QA-injected sides using the Student’s paired t-test