Table 1 Comparisons of subjective and objective evaluation parameters of SMA during arterial phase

40 keV

1254.75 ± 235.47^a

41.26 ± 14.62^a

21.36 ± 7.14^b

4.17 ± 0.81^a

4.29 ± 0.32^b

4.92 ± 0.28^a

50 keV

831.33 ± 155.31^b

37.18 ± 13.21^a

21.20 ± 7.11^b

4.14 ± 0.79^a

4.34 ± 0..23^b

4.91 ± 0..23^a

60 keV

578.83 ± 105.95^c

33.05 ± 12.22^a

21.16 ± 7.29^b

4.11 ± 0.78^a

4.97 ± 0.20^a

4.81 ± 0.23^a

70 keV

421.19 ± 76.74^c

28.5 ± 10.84^b

20.92 ± 71.17^b

3.38 ± 0.49^b

4.12 ± 0.18^b

4.14 ± 0.35^b

80 keV

323.64 ± 63.03^d

24.89 ± 9.78^bc

19.03 ± 7.03^b

3.33 ± 0.53^b

4.03 ± 0.17^c

3.98 ± 0.38^bc

90 keV

249.22 ± 46.48^d

18.45 ± 7.23^c

14.92 ± 6.00^c

2.36 ± 0.48^c

4.06 ± 0.23^c

3.03 ± 0.17^c

120 kVp

431.81 ± 105.84^c

21.74 ± 7.43^c

26.55 ± 10.15^a

3.36 ± 0.18^b

4.08 ± 0.19^bc

4.03 ± 0.29^b

Z/F value

235.641

200.304

163.572

7.574

7.424

7.311

P value

 < 0.001

 < 0.001

 < 0.001

0.817

0.828

0.716