Table 4.
Results of LSD test for pairwise comparisons of the combinations of exposure settings
| Artifact | Artifact | Subtraction of means | Standard error | P value |
|---|---|---|---|---|
| Small FOV, 4 mA | Small FOV, 10 mA | 28.304 | 23.132 | 0.232 |
| Large FOV, 4 mA | − 142.881 | 48.753 | 0.007 | |
| Large FOV, 10 mA | − 129.593 | 56.036 | 0.029 | |
| Small FOV, 10 mA | Small FOV, 4 mA | −28.304 | 23.132 | 0.232 |
| Large FOV, 4 mA | −171.185 | 48.504 | 0.002 | |
| Large FOV, 10 mA | − 157.896 | 57.415 | 0.011 | |
| Large FOV, 4 mA | Small FOV, 4 mA | 142.881 | 48.753 | 0.007 |
| Small FOV, 10 mA | 171.185 | 48.504 | 0.002 | |
| Large FOV, 10 mA | 13.289 | 40.006 | 0.742 | |
| Large FOV, 10 mA | Small FOV, 4 mA | 129.593 | 56.036 | 0.029 |
| Small FOV, 10 mA | 157.896 | 57.415 | 0.011 | |
| Large FOV, 4 mA | −13.289 | 40.006 | 0.742 |