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Table 3 Viscoelastic properties of chordae treated with glutaraldehyde under a sinusoidally varying load across a range of frequencies

From: Effect of glutaraldehyde based cross-linking on the viscoelasticity of mitral valve basal chordae tendineae

Frequency (Hz)

Anterior strut

Anterior basal

Posterior basal

Storage modulus (MPa)

Loss modulus (MPa)

Storage modulus (MPa)

Loss modulus (MPa)

Storage modulus (MPa)

Loss modulus (MPa)

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Mean

SD

0.50

47.9

13.3

2.31

1.43

67.3

20.9

3.63

2.47

77.7

33.3

4.29

3.33

1.00

49.3

13.8

2.54

1.55

69.0

21.4

3.85

2.58

79.5

33.8

4.50

3.48

1.20

49.9

14.0

2.53

1.55

70.2

21.7

3.89

2.58

80.6

34.3

4.55

3.52

3.50

51.7

14.4

2.73

1.67

72.8

22.4

3.99

2.66

83.8

35.4

4.70

3.62

5.00

52.2

14.6

2.71

1.66

73.8

22.7

3.95

2.66

85.0

35.8

4.70

3.63

7.00

52.8

14.9

2.93

1.78

74.8

23.0

4.08

2.72

86.5

36.5

4.94

3.79

10.0

53.5

15.0

2.88

1.76

75.7

23.3

4.07

2.73

87.4

36.9

4.87

3.74

  1. n = 8
  2. SD standard deviation