DOTATATE-PET/CT protocol parameters
| Protocol | PETa | CTb | ||
|---|---|---|---|---|
| Bed Positions | Acquisition Time (Min/Bed) | mA | Pitch (mm/Rot) | |
| Brain | 1 | 10 | 95 | 1.375 |
| Fixed mA | ||||
| Head/neck | 3 | 5 | 50–440 | 0.984 |
| Auto mA | ||||
| Noise index 18.0 | ||||
| Vertex-to-thigh | 7–8 | 5 | 30–440 | 0.984 |
| Auto mA | ||||
| Noise index 28.5 | ||||
Note:—Min indicates minute; Rot, rotation time.
↵a All 3D PET data were reconstructed using VUE Point FX (GE Healthcare) TOF and Sharp IR; 64Cu-DOTATATE: 256 matrix, 3 iterations, 8 subsets, “standard” z-axis filter, and a Gaussian postfilter of 7.0-mm FWHM; 68Ga DOTATATE: 192 matrix, 2 iterations, 24 subsets, standard z-axis filter, and a Gaussian postfilter of 6.4-mm FWHM.
↵b All helical CT configurations used 120 kV(peak), 3.75-mm section thickness, and a 0.8-second rotation.