组别

血管CT值(HU)

CNR

SNR

主观评分

50 keV

537.50 ± 74.98

84.75 ± 20.37

75.69 ± 18.66

4.91 ± 0.29

60 keV

386.33 ± 55.80

76.07 ± 20.08

65.46 ± 17.88

4.56 ± 0.71

70 keV

281.41 ± 45.75

60.97 ± 19.22

49.78 ± 16.60

4.18 ± 0.84

120 kVp-like

230.41 ± 40.73

57.38 ± 16.65

45.12 ± 13.53

4.13 ± 0.86

对照组

252.04 ± 45.16

53.47 ± 16.83

42.60 ± 14.66

4.15 ± 0.84

F

304.345

27.846

41.695

11.527

P值

<0.001

<0.001

<0.001

<0.001