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. 2021 May 25;26(11):3159. doi: 10.3390/molecules26113159

Table 1.

An overview of radionuclides and their half-lives.

Radionuclide Half-Life 1 Imaging Modality 2
11C 20.39 min PET
15O 122 s PET
18F 109.77 min PET
67Ga 3.26 d SPECT
68Ga 67.7 min PET
99mTc 6.02 h SPECT
111In 2.80 d SPECT

1 Source: ICRP Publication 107 [5] 2 PET: positron emission tomography. SPECT: single-photon emission computed tomography.