Table 5 Results on non-calibrated phantoms of Device 2 for the two operators.

From: Reliability and robustness of a novel preclinical torsional wave-based device for stiffness evaluation

Device 2

Gelatin concentration

7%

10%

13.5%

16.5%

19%

23%

25%

SWE stiffness[kPa]

6.25 ± 0.17

10.24 ± 0.08

15.60 ± 0.03

22.62 ± 0.14

25.00 ± 0.15

33.06 ± 0.1

37.33 ± 0.09

Operator 1(\(\mu \pm \sigma\))

5.74 ± 0.17

8.06 ± 0.64

10.38 ± 0.80

13.13 ± 0.50

15.70 ± 0.75

22.67 ± 0.74

29.99 ± 0.30

Repeatability

96.96%

91.97%

92.26%

96.19%

95.22%

96.75%

98.99%

Deviation

6%

15%

24%

30%

26%

22%

14%

Operator 2(\(\mu \pm \sigma\))

5.72 ± 0.19

8.13 ± 0.81

10.26 ± 0.62

13.39 ± 0.23

14.41 ± 0.12

22.63 ± 1.42

29.99 ± 0.31

Repeatability

96.67%

90.01%

94.00%

98.27%

99.15%

93.73%

98.99%

Deviation

6%

15%

24%

29%

30%

22%

14%

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