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Table 2 Peaks and average spatial frequency of noise power spectrum (NPS) curve

From: Image quality assessment of pediatric chest and abdomen CT by deep learning reconstruction

Reconstruction

Dose (mGy)

ASIR-V 50

ASIR-V 100

DLR-M

DLR-H

NPS peak (HU2.mm2)

1

69.30

45.71

46.76

34.47

3

22.03

14.61

15.10

10.03

5

14.86

9.86

10.40

7.20

NPS average spatial frequency (mm−1)

1

0.27

0.19

0.30

0.28

3

0.29

0.19

0.32

0.31

5

0.28

0.19

0.32

0.31

  1. ASIR-V 50 50% adaptive statistical iterative reconstruction-V, ASIR-V 100 100% ASIR-V, DLR-M medium strength deep learning reconstruction, DLR-H high strength DLR