RF & microwave ablation Flashcards
1
Q
Four clinical uses for RF ablation?
A
Treat cardiac arrythmia
Treat liver cancer
Destroy nerve endings
Coagulate tissue in open surgery
2
Q
Useful band for RF ablation?
A
300 kHz - 1 MHz
< 300 kHz nerve stimulation
> 1 MHz dielectric heating
3
Q
Mechanism of damage for RF ablation?
A
Resistive heating
4
Q
What is required under CEMFAWR regs with respect to EM ablation equipment?
A
Risk assessment
5
Q
Useful band for microwave ablation?
A
1 - 2.5 GHz
6
Q
Use case for microwave ablation?
A
Treat liver mets
7
Q
Mechanism of heating for microwave ablation?
A
Frictional heating due to rotation of dipoles (water)
