CCKBR and neoplasm: Determination of the tumor-to-muscle (T/M) ratios revealed that [68Ga]Ga-DOTA-CCK2R-dimer presented significantly higher values than did [68Ga]Ga-DOTA-CCK-66 at both 1 h (16.54 ± 2.99 vs. 10.25 ± 1.41; p = 0.029) and 2 h post-injection (33.03 ± 7.91 vs. 15.20 ± 6.94; p = 0.043; Figure 2F).