|
Time to rise temperature of 10°C at sacrum
|
50 W
|
100 W
|
150 W
|
200 W
|
300 W
|
|---|
|
ϵr = 1
|
5966 (s)
|
2983 (s)
|
1989 (s)
|
1491 (s)
|
994 (s)
|
|
ϵr = 5
|
875 (s)
|
437 (s)
|
292 (s)
|
219 (s)
|
145 (s)
|
|
ϵr = 20
|
164 (s)
|
82 (s)
|
55 (s)
|
41 (s)
|
27 (s)
|
|
ϵr = 50
|
59 (s)
|
29 (s)
|
19 (s)
|
15 (s)
|
10 (s)
|
|
ϵr = 100
|
31 (s)
|
16 (s)
|
10 (s)
|
8 (s)
|
5 (s)
|
- Time was estimated by means of the Bioheat equation: the assumption of absence of heat transfer to surrounding tissues, blood perfusion and metabolic heat was held. Time was estimated for a continuous sinusoidal waveform (typical of cut-mode); if coagulation or blend waveforms are delivered by the ESU this time should multiplied by opportune factors (e.g. if a blend-mode is obtained with a duty cycle of 50% the values in the table should by multiplied by 2) The value shown in italics matches the ESU’s settings considered for the simulation.
