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Table 2 Comparisons of the qualitative image rating of all reconstructions

From: Optimal combination periprosthetic vasculature visualization and metal artifact reduction by spectral computed tomography using virtual monoenergetic images in total hip arthroplasty

 

CI

CIMAR

                                                                                           VMIMAR

50 keV

60 keV

70 keV

80 keV

90 keV

100 keV

110 keV

120 keV

Vascular contour

2.03 ± 0.97

3.47 ± 0.66

2.32 ± 1.07

2.82 ± 0.97

3.65 ± 0.65

3.56 ± 0.71

2.71 ± 0.72

1.82 ± 0.63

1.24 ± 0.50

1.09 ± 0.29

Extent of artifact

1.06 ± 0.24

3.12 ± 0.54

2.18 ± 0.76

2.62 ± 0.74

3.06 ± 0.65

3.38 ± 0.70

3.53 ± 0.75

3.85 ± 0.78

4.0 ± 0.82

4.03 ± 0.83

Overall diagnostic evaluation

1.06 ± 0.24

3.12 ± 0.64

2.12 ± 0.73

2.56 ± 0.75

3.32 ± 0.68

3.53 ± 0.66

2.88 ± 0.64

2.18 ± 0.39

2.00 ± 0.43

1.91 ± 0.38

  1. CI conventional image, CIMAR conventional image combined with orthopedic metal artifact reduction, VMIMAR virtual monoenergetic images combined with orthopedic metal artifact reduction