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Table 8 Comparison of Computational Data to Experimental Validation Data at 22°C.

From: Thermal modeling of lesion growth with radiofrequency ablation devices

 

Lesion Width

Lesion Depth

Source Voltage (Volts)

D = 63% (mm)

Experimental (mm)

D = 63% (mm)

Experimental (mm)

20.0

0

0

0

0

22.5

0

--

0

--

25.0

4

5

5

6

27.5

8

--

9

--

30.0

10

10

21

22

  1. Simulated lesion dimensions with no tissue perfusion at an ambient temperature of 22°C using a 63% cell damage threshold (D) were compared to experimental measurements made at 20, 25, and 30 volts using an experimental constant voltage radiofrequency ablation source. Lesions were generated with a single needle ablation probe with a 2.0 cm active electrode. All lesion measurements were measured visually under a micrsope at 10× magnification.