Table 3 Subjective PET image quality scores using different reconstruction parameters (n = 63)
Parameters | OSEM3 | OSEM2 | HYPER0.3 | HYPER0.4 | HYPER0.5 | HYPER0.6 |
|---|---|---|---|---|---|---|
Overall image quality | ||||||
Underweight | 5.0 ± 0 | 5.0 ± 0 | 4.8 ± 0.2 | 5.0 ± 0 | 5.0 ± 0 | 5.0 ± 0 |
Normal | 3.8 ± 0.6 | 4.7 ± 0.4 | 3.9 ± 0.6 | 4.5 ± 0.5 | 4.5 ± 0.5 | 4.5 ± 0.4 |
Overweight | 3.1 ± 0.3 | 4.1 ± 0.3 | 3.2 ± 0.4 | 4.0 ± 0 | 4.0 ± 0.1 | 4.1 ± 0.4 |
Obese | 2.7 ± 0.5 | 3.6 ± 0.5 | 3.0 ± 0 | 3.7 ± 0.3 | 3.9 ± 0.2 | 3.8 ± 0.3 |
Noise | ||||||
Underweight | 5.0 ± 0 | 5.0 ± 0 | 5.0 ± 0 | 5.0 ± 0 | 5.0 ± 0 | 5.0 ± 0 |
Normal | 3.8 ± 0.4 | 4.7 ± 0.4 | 3.9 ± 0.6 | 4.2 ± 0.4 | 4.6 ± 0.5 | 4.8 ± 0.4 |
Overweight | 3.2 ± 0.4 | 4.1 ± 0.3 | 3.3 ± 0.4 | 4.0 ± 0 | 4.3 ± 0.4 | 4.7 ± 0.4 |
Obese | 2.7 ± 0.5 | 3.6 ± 0.5 | 3.0 ± 0.2 | 3.9 ± 0.2 | 4.0 ± 0.0 | 4.3 ± 0.4 |
Lesion conspicuity | ||||||
Underweight | 4.2 ± 0.3 | 3.6 ± 0.5 | 5.0 ± 0 | 5.0 ± 0 | 5.0 ± 0 | 4.9 ± 0.3 |
Normal | 4.2 ± 0.3 | 3.5 ± 0.4 | 5.0 ± 0 | 5.0 ± 0 | 4.9 ± 0.2 | 4.7 ± 0.5 |
Overweight | 4.1 ± 0.3 | 3.6 ± 0.5 | 5.0 ± 0 | 5.0 ± 0 | 4.9 ± 0.2 | 4.7 ± 0.4 |
Obese | 4.2 ± 0.3 | 3.6 ± 0.4 | 5.0 ± 0 | 5.0 ± 0 | 4.9 ± 0.2 | 4.5 ± 0.5 |