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Table 5 PDFFs (%) of all sampling strategies measured by readers 1 and 2

From: Comparison of reader agreement, correlation with liver biopsy, and time-burden sampling strategies for liver proton density fat fraction measured using magnetic resonance imaging in patients with obesity: a secondary cross-sectional study

 

Reader 1 PDFF measure

Reader 2 PDFF measure

First time

Second time

S1 1S-ROI

12.02 ± 9.77

11.91 ± 9.43

11.83 ± 8.97

S2 1S-ROI

12.41 ± 8.19

12.96 ± 8.63

12.11 ± 8.39

S3 1S-ROI

13.19 ± 9.84

13.23 ± 8.80

12.02 ± 9.28

S4a 1S-ROI

13.27 ± 9.01

12.87 ± 8.98

13.35 ± 9.37

S4b 1S-ROI

13.34 ± 9.57

13.04 ± 9.85

13.41 ± 9.69

S5 1S-ROI

13.31 ± 9.35

13.54 ± 9.78

13.56 ± 9.81

S6 1S-ROI

13.95 ± 9.81

13.59 ± 9.47

12.94 ± 9.03

S7 1S-ROI

14.76 ± 9.59

14.67 ± 10.02

14.37 ± 9.61

S8 1S-ROI

14.59 ± 9.95

14.66 ± 9.25

14.63 ± 9.48

S1 3S-ROI

11.96 ± 9.54

12.04 ± 9.16

11.97 ± 8.96

S2 3S-ROI

12.57 ± 8.35

12.79 ± 8.71

13.00 ± 8.72

S3 3S-ROI

12.21 ± 9.44

13.14 ± 9.15

12.62 ± 9.11

S4a 3S-ROI

13.21 ± 9.11

12.92 ± 8.87

13.56 ± 9.81

S4b 3S-ROI

13.40 ± 9.33

13.56 ± 9.71

13.06 ± 9.43

S5 3S-ROI

13.61 ± 9.53

13.49 ± 9.54

13.43 ± 9.51

S6 3S-ROI

14.04 ± 9.89

13.28 ± 9.27

13.07 ± 8.83

S7 3S-ROI

14.73 ± 9.74

14.68 ± 9.80

14.68 ± 9.58

S8 3S-ROI

14.50 ± 9.74

14.74 ± 9.24

14.61 ± 9.46

S1 1L-ROI

11.84 ± 9.12

11.76 ± 8.92

11.53 ± 9.58

S2 1L-ROI

12.12 ± 9.81

12.21 ± 8.72

12.17 ± 9.07

S3 1L-ROI

12.90 ± 9.21

13.05 ± 9.20

13.68 ± 9.26

Sa4 1L-ROI

12.56 ± 9.20

12.87 ± 9.20

12.82 ± 8.90

S4b 1L-ROI

13.50 ± 9.53

12.94 ± 9.27

13.14 ± 9.08

S5 1L-ROI

13.30 ± 9.61

13.38 ± 9.69

13.32 ± 9.07

S6 1L-ROI

13.33 ± 9.48

13.69 ± 9.68

13.45 ± 9.59

S7 1L-ROI

14.39 ± 9.90

14.39 ± 10.07

14.38 ± 9.83

S8 1L-ROI

14.06 ± 9.15

14.41 ± 9.52

14.11 ± 9.33

S1 3L-ROI

11.68 ± 9.17

11.57 ± 9.07

11.52 ± 9.33

S2 3L-ROI

12.30 ± 8.61

12.22 ± 8.68

12.30 ± 8.76

S3 3L-ROI

12.85 ± 9.15

12.89 ± 9.12

12.82 ± 9.10

S4a 3L-ROI

12.61 ± 9.00

12.91 ± 9.16

12.83 ± 8.92

S4b 3L-ROI

13.42 ± 9.59

13.06 ± 9.33

13.30 ± 9.28

S5 3L-ROI

13.37 ± 9.54

13.40 ± 9.50

13.37 ± 9.30

S7 3L-ROI

13.30 ± 9.45

13.45 ± 9.44

13.31 ± 9.43

S6 3L-ROI

14.54 ± 9.86

14.44 ± 10.01

14.43 ± 9.80

S8 3L-ROI

14.08 ± 9.31

14.31 ± 9.58

14.08 ± 9.31

4S-ROI

13.94 ± 9.39

13.84 ± 9.26

13.46 ± 9.17

4L-ROI

13.52 ± 9.25

13.66 ± 9.40

13.46 ± 9.17

9S-ROI

13.63 ± 9.28

13.67 ± 9.28

13.67 ± 9.33

27S-ROI

13.67 ± 9.33

13.60 ± 9.11

13.31 ± 8.99

9L-ROI

13.12 ± 9.16

13.19 ± 9.16

13.07 ± 9.10

27L-ROI

13.12 ± 9.15

13.14 ± 9.18

13.46 ± 9.07

  1. PDFFs Proton density fat fractions, S-ROI Small region-of-interest, L-ROI Large region-of-interest