Experimental group Mono+ 55 kV

Control group

100 kV

P-value

Abdominal Aorta CT-Value

602.34 ± 89.67

596.29 ± 90.78

P < 0.05

Abdominal Aorta SNR

18.75 ± 6.02

18.79 ± 5.05

P < 0.05

Abdominal Aorta CNR

44.50 ± 7.01

45.40 ± 6.9

P < 0.05

Renal Artery CT-Value

568 ± 176.39

566.18 ± 189.21

P < 0.05

Renal Artery SNR

16.68 ± 6.87

16.65 ± 6.96

P < 0.05

Renal Artery CNR

43.78 ± 7.43

45.77 ± 7.08

P < 0.05

Renal Tumor CT-Value

259.12 ± 78.68

245.89 ± 84.14

P < 0.05

Renal Tumor SNR

5.80 ± 4.78

5.78 ± 4.61

P < 0.05

Renal Tumor CNR

21.15 ± 7.11

20.68 ± 6.75

P < 0.05