SSTR2 and neoplasm: In ICR SCID mice, [[99mTc][Tc(OH2)3(CO)3]-NOTA-SST2-ANT] showed tumor uptake of 2.78 ± 0.27% ID/g at 1 h p.i., while [[99mTc][Tc(OH2)3(CO)3]-NODAGA-SST2-ANT] showed higher tumor accumulation of 16.70 ± 3.32% ID/g 1 h p.i. (Figure 12) [86].