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Table 5 Percent Error between Constant Conductivity and Temperature Dependent Data with Perfusion

From: Finite Element Analysis of Hepatic Radiofrequency Ablation Probes using Temperature-Dependent Electrical Conductivity

Applied Volts (V)

Maximum Temperature Achieved (°C)

Change Electric Field (%)

Change Current Density (%)

Change Temperature (%)

Change Heat Flux (%)

Change Electrical Conductivity (%)

Change SAR (%)

0.0

37

0.0

0.0

0.0

0.0

0.0

0.0

2.5

37

0.0

1.5

0.0

6.7

1.5

1.5

5.0

39

-0.2

2.6

0.0

9.3

2.8

2.4

7.5

40

-0.5

6.0

0.0

6.7

6.5

5.5

10.0

44

-0.9

11.0

0.0

5.3

12.0

10.0

12.5

49

-1.2

17.8

0.0

8.1

19.3

16.3

15.0

54

-1.8

26.7

0.1

8.6

29.0

24.5

17.5

62

-2.4

38.3

0.4

11.0

41.7

34.9

20.0

70

-3.1

52.9

2.6

11.1

57.9

48.2

22.5

78

-3.9

71.6

5.3

13.7

78.7

64.9

25.0

88

-4.8

95.2

7.0

19.7

105.0

85.8

27.5

96

-5.8

124.9

8.2

20.5

138.7

111.9

  1. Percent error for all cases is calculated as (<Temperature Dependent Parameter> – <Constant Parameter>) / <Constant Parameter>. All percentage changes refer to the maximum change in the parameter.