Table 1.

Estimation of whole-body retention in mice at 4 h postinjection for previously published small molecules

Molecule	%ID (whole body)	Reference
64Cu-DOTA-RGD	>15	[12]
64Cu-DOTA-PEG-E(c(RGDyK))2	>6.7	[13]
64Cu-DOTA-8-AOC-BBN	>35	[14]
64Cu-CB-Te2A-8-AOC-BBN	>13	[14]
67Ga-DOTA-PESIN	>8.9	[15]
177Lu-DOTA-PESIN	>8.8	[15]
99mTc-depreotide	>31	[16]
111In-DTPA-octreotide	>13	[16]
Lys40(Ahx-DTPA-111In)NH2 exendin-4	>93	[17]
111In-IMP-241	>1.4a	[10]
99mTc-IMP-243	>24a	[10]
99mTc-IMP-245	>2.6a	[10]
125I-GP2 (galacto-cRGDyK)	>7.6	[18]
68Ga-p-NO2-Bn-NOTA	>22	[19]
68Ga-p-NO2-Bn-Oxo	>98	[19]
68Ga-p-NO2-Bn-DOTA	>18	[19]
68Ga-p-NO2-Bn-PCTA	>36	[19]

^aThree hours p.i.