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Table 1 Objective image quality assessment

From: Comparison of ultrahigh and standard resolution photon-counting CT angiography of the femoral arteries in a continuously perfused in vitro model

Scan Mode/Kernel

Attlum [HU]

SD Attlum [HU]

SD Attmusc [HU]

SD Attfat [HU]

SNR

CNR

SR

Bv48

419.9 ± 25.6

11.2 ± 2.1

11.1 ± 1.8

11.1 ± 1.1

38.3 ± 4.7

33.7 ± 4.4

Bv60

418.1 ± 30.1

21.8 ± 3.6

23.5 ± 12.7

21.8 ± 5.2

20.9 ± 5.3

18.4 ± 4.8

Bv76

421.9 ± 27.9

75.4 ± 16.2

73.9 ± 12.7

69.2 ± 15.9

6.6 ± 1.7

5.8 ± 1.5

UHR

Bv48

404.5 ± 24.6

10.1 ± 2.4

10.7 ± 1.4

10.8 ± 1.1

38.0 ± 4.8

33.4 ± 4.4

Bv60

406.4 ± 25.1

17.2 ± 3.4

19.5 ± 3.8

17.2 ± 4.2

25.9 ± 6.4

22.7 ± 5.8

Bv76

401.9 ± 26.1

50.2 ± 11.7

49.9 ± 8.9

45.6 ± 11.6

9.7 ± 2.6

8.5 ± 2.3

  1. Attfat Attenuation of fat tissue, Attlum Intraluminal attenuation, Attmusc Attenuation of muscle tissue, CNR Contrast-to-noise-ratio, HU Hounsfield units, SD Standard deviation, SNR Signal-to-noise-ratio, SR Standard resolution, UHR Ultrahigh resolution