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Contrast to noise ratio for the five regions of interest in clinical CTAs
| FBP | FBP50 % | AIDR50 % | FBP versus FBP50 % p value |
FBP versus AIDR50 % p value |
|
|---|---|---|---|---|---|
| Aorta versus Muscle | 18.3 ± 9.2 | 13.2 ± 7.0 | 20.5 ± 9.0 | <0.0001 | <0.0001 |
| Muscle versus Fat | 8.2 ± 2.9 | 6.0 ± 2.3 | 8.4 ± 2.4 | <0.0001 | 0.27 |
| Muscle versus Airway | 50.4 ± 17.0 | 36.9 ± 13.7 | 51.4 ± 13.7 | <0.0001 | 0.24 |
