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Signal to noise ratio for the five regions of interest in clinical CTAs
| ROI | FBP | FBP50 % | AIDR50 % | FBP versus FBP50 % p value |
FBP versus AIDR50 % p value |
|---|---|---|---|---|---|
| Airway | 38.5 ± 14.5 | 29.8 ± 11.5 | 38.3 ± 12.7 | <0.0001 | 0.81 |
| Aorta | 20.2 ± 9.7 | 14.6 ± 7.4 | 22.6 ± 9.4 | <0.0001 | <0.0001 |
| Fat | 5.4 ± 2.0 | 4.0 ± 1.6 | 5.5 ± 1.9 | <0.0001 | 0.20 |
| Muscle | 3.1 ± 1.3 | 2.3 ± 1.0 | 3.2 ± 1.2 | <0.0001 | 0.38 |
| Liver | 2.3 ± 1.1 | 1.6 ± 0.8 | 2.7 ± 1.0 | <0.0001 | <0.0001 |
