Table 3. Most common used SPECT radioisotopes.
| Radionuclides | 67Ga | 67Cu | 99mTc | 111In | 123I | 153Sm | 159Gd | 166Ho | 177Lu |
|---|---|---|---|---|---|---|---|---|---|
| Energy (keV) | 93 | 185 | 140 | 245 | 159 | 103 | 363 | 80 | 208 |
| T1/2 | 3.26 d | 3 d | 6.06 h | 2.83 d | 13.2 h | 47 h | 20 h | 26 h | 7 d |
SPECT, single photon emission computed tomography; d, days; h, hours.