Table 2 Mean values and standard deviation (std) for storage and loss modulus and loss tangent. f is the excitation frequency of the sine wave. AQLVorig: AQLV model with original parameters, AQLVrecal: AQLV model with re-calibrated parameters. Significant values (p < 0.05) are marked in bold.

From: Usage of the adaptive quasi-linear viscoelastic model to predict load-unload, stress-relaxation, and sine load of porcine liver

f in Hz

0.5

1.0

1.5

2.0

0.5

1.0

1.5

2.0

0.5

1.0

1.5

2.0

 

Storage modulus in kPa

Loss modulus in kPa

Loss tangent

Experiment

mean

462

455

478

557

42

43

52

62

0.091

0.095

0.110

0.110

std

158

156

168

192

14

15

18

24

0.005

0.006

0.014

0.022

AQLVorig

mean

240

237

251

194

6.4

3.2

2.3

1.3

0.025

0.013

0.009

0.007

std

269

273

288

144

8.1

4.1

3.0

1.0

0.001

0.001

0.001

0.000

p-value

0.001

< 0.001

0.002

<0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

AQLVrecal

mean

463

461

483

561

40

46

63

79

0.087

0.096

0.130

0.140

std

162

166

178

198

20

28

26

35

0.030

0.038

0.040

0.042

p-value

0.42

0.47

0.42

0.47

0.35

0.49

0.22

0.11

0.47

0.44

0.074

0.039