A cooled needle electrode for radiofrequency tissue ablation: thermodynamic aspects of improved performance compared with conventional needle design.

@article{Lorentzen1996ACN,
  title={A cooled needle electrode for radiofrequency tissue ablation: thermodynamic aspects of improved performance compared with conventional needle design.},
  author={Torben Lorentzen},
  journal={Academic radiology},
  year={1996},
  volume={3 7},
  pages={556-63}
}
RATIONALE AND OBJECTIVES I developed and tested a cooled needle electrode (CNE) for radiofrequency (RF) tissue ablation in vitro. METHODS A 2-mm needle electrode with two lumina for internal water perfusion and irrigation of the needle tip and a conventional needle electrode were tested in ex vivo calf liver during different levels of output power (wattage). RF lesions produced by the two needle types were further evaluated with a thermal camera. RESULTS When the CNE was used, a significant… CONTINUE READING

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