Altering electrode polarity: New technique for bipolar radio frequency transurethral coagulation of prostate

Massoud Motamedi, Dmitry E. Protsenko

Research output: Contribution to conferencePaper

Abstract

Bipolar radio frequency (rf) transurethral prostate coagulation is a treatment method for benign prostatic hyperplasia through an rf current applied though three needle microelectrodes inserted in the urethra wall. A set of in vitro studies on beef muscle were performed to investigate the feasibility of altering the electrodes' polarity to increase the coagulated zone volume. Overall, the proposed approach increases the volume of coagulated tissue by a factor of two almost independent of the polarity alteration frequency. However, rapid alteration could lead to explosive vaporization of water trapped in the tissue which could, in turn open a passage for hot water deep into the tissue and increase the coagulation zone.

Original languageEnglish (US)
Number of pages1
StatePublished - Jan 1 1998
EventProceedings of the 1998 17th Southern Biomedical Engineering Conference - San Antonio, TX, USA
Duration: Feb 6 1998Feb 8 1998

Other

OtherProceedings of the 1998 17th Southern Biomedical Engineering Conference
CitySan Antonio, TX, USA
Period2/6/982/8/98

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Motamedi, M., & Protsenko, D. E. (1998). Altering electrode polarity: New technique for bipolar radio frequency transurethral coagulation of prostate. Paper presented at Proceedings of the 1998 17th Southern Biomedical Engineering Conference, San Antonio, TX, USA, .