Effects of Image Resolution and Matrix Size on Recovery Coefficient as Function of Sphere Size
| Maximum pixel value | ROI50 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Image resolution FWHM (mm) | 5 | 5 | 8 | 8 | 5 | 5 | 8 | 8 | ||||||
| Image matrix size | 128 | 256 | 128 | 256 | 128 | 256 | 128 | 256 | ||||||
| Sphere size | ||||||||||||||
| 10 | 1.05 (0.14) | 1.30 (0.15) | 0.77 (0.03) | 0.82 (0.05) | 0.71 (0.14) | 0.86 (0.16) | 0.51 (0.03) | 0.54 (0.05) | ||||||
| 15 | 1.17 (0.10) | 1.48 (0.11) | 0.94 (0.03) | 0.99 (0.04) | 0.81 (0.08) | 0.96 (0.10) | 0.65 (0.02) | 0.68 (0.04) | ||||||
| 20 | 1.25 (0.07) | 1.59 (0.07) | 1.03 (0.02) | 1.06 (0.03) | 0.88 (0.05) | 1.01 (0.05) | 0.73 (0.02) | 0.76 (0.02) | ||||||
| 30 | 1.37 (0.05) | 1.72 (0.07) | 1.09 (0.02) | 1.12 (0.03) | 0.93 (0.03) | 1.05 (0.04) | 0.81 (0.01) | 0.83 (0.01) | ||||||
SEs are given in parentheses.