Table 3.
Dependency on tube load for different reconstruction algorithms. Visual grading regression (VGR) coefficients for log (mAs) in pairwise comparisons of two quality reference (Qref) mAs values
| Criterion | Reconstruction algorithm | |||||
|---|---|---|---|---|---|---|
| FBP | ADMIRE 3 | ADMIRE 5 | ||||
| 42 mAs vs. 98 mAs | 98 mAs vs. 140 mAs | 42 mAs vs. 98 mAs | 98 mAs vs. 140 mAs | 42 mAs vs. 98 mAs | 98 mAs vs. 140 mAs | |
| 1. Liver parenchyma | – | 3.36** | 2.20*** | –0.28° | 1.49* | –0.37° |
| 2. Pancreatic contours | – | 1.89** | 2.41*** | –0.89* | 1.37*** | –2.62*** |
| 3. Kidneys and proximal ureters | 7.25* | 2.39* | 2.29*** | –0.92* | 1.46*** | –2.20*** |
| 4. Lymph nodes < 15 mm in diameter | 6.50* | 2.09** | 1.83*** | –1.93*** | 1.14*** | –2.20* |
| 5. Image noise | 5.49** | 4.70** | 3.07** | – | 4.79* | 1.07° |
| 6. Overall image quality | – | – | 3.68* | 0.03° | 3.74** | –1.27** |
* p < 0.05, ** p < 0.01, *** p < 0.001, ° not significant
– Convergence was not achieved with the statistical software available