Table 4 The results of subjective image analysis comparing different image protocols.
Standard dose with IR | SilverBeam with DLR | SilverBeam with DLR + CE-boost | P value | P1 vs. P2 | P1 vs. P3 | P2 vs. P3 | |
|---|---|---|---|---|---|---|---|
Observer 1 | |||||||
Overall image quality | 4.91 ± 0.28 | 4.96 ± 0.17 | 4.62 ± 0.58 | 0.001 | 0.320 | 0.001 | 0.001 |
Image noise | 4.78 ± 0.41 | 4.84 ± 0.39 | 4.84 ± 0.39 | 0.510 | 0.570 | 0.570 | 0.999 |
Artifact | 4.77 ± 0.42 | 4.94 ± 0.22 | 4.44 ± 0.82 | 0.001 | 0.070 | 0.001 | 0.001 |
Diagnostic acceptability | 4.98 ± 0.10 | 4.99 ± 0.10 | 4.70 ± 0.50 | 0.001 | 0.999 | 0.001 | 0.001 |
Observer 2 | |||||||
Overall image quality | 4.93 ± 0.24 | 4.94 ± 0.22 | 4.94 ± 0.22 | 0.910 | 0.980 | 0.980 | 0.990 |
Image noise | 4.92 ± 0.26 | 4.90 ± 0.29 | 4.91 ± 0.29 | 0.880 | 0.990 | 0.990 | 0.999 |
Artifact | 4.95 ± 0.20 | 4.94 ± 0.20 | 4.93 ± 0.24 | 0.750 | 0.999 | 0.811 | 0.783 |
Diagnostic acceptability | 4.95 ± 0.22 | 4.93 ± 0.24 | 4.93 ± 0.23 | 0.960 | 0.970 | 0.970 | 0.999 |
