In addition, the level of striatal DAT availability was significantly higher in the BD patients than in the controls (right: 1.53 ± 0.18 vs. 1.39 ± 0.26, p = 0.045; left: 1.52 ± 0.16 vs. 1.35 ± 0.22, p = 0.005; total: 1.52 ± 0.17 vs. 1.37 ± 0.23, p = 0.015). Here, SLC6A3 is linked to Behcet disease.