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Table 2 Contrast-to-noise ratios (CNRs) for the liver, spleen, kidneys, and aorta

From: Application of deep learning reconstruction of ultra-low-dose abdominal CT in the diagnosis of renal calculi

CNR

LD-HIR (group 1)

ULD-HIR (group 2)

ULD-DLR (group 3)

P 1 vs. 2 vs. 3

P 1 vs. 2

P 1 vs. 3

P 2 vs. 3

Liver

1.18 ± 0.84

0.77 ± 0.65

1.24 ± 0.99

 < 0.001

0.005

0.290

0.003

Spleen

0.57 ± 0.47

0.55 ± 0.49

0.72 ± 0.58

0.148

0.696

0.142

0.034

Kidney

2.30 ± 0.76

1.69 ± 0.62

2.40 ± 0.83

 < 0.001

 < 0.001

0.564

 < 0.001

Aorta

1.04 ± 0.72

0.94 ± 0.62

1.13 ± 0.74

0.393

0.596

0.515

0.146