Table 3.
FWHM image resolution of the line source phantom reconstructed with a linear crystal DOI calibration, a linear detector DOI calibration and without DOI information. The scanner configuration is shown in Figure 1a
| DOI calibration methods | Crystal Calibration | Detector Calibration | No DOI | |
|---|---|---|---|---|
| Source 1 (x=0 mm) | x | 0.83 mm | 0.86 mm | 1.71 mm |
| y | 0.94 mm | 0.96 mm | 1.55 mm | |
| Source 2 (x=7.5 mm) | x | 0.78 mm | 0.80 mm | 1.00 mm |
| y | 0.92 mm | 0.97 mm | 1.62 mm | |
| Source 3 (x=15 mm) | x | 0.74 mm | 0.76 mm | 1.16 mm |
| y | 1.01 mm | 1.03 mm | 1.93 mm | |