Liver resection using high frequency electromagnetic thermotherapy

Sheng Chieh Huang, Hung Wen Tsai, Chih Hao Huang, Roberto Zuchini, Chong Jeh Lo, Xi Zhang Lin, Gwo Bin Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Background/Aim: Electromagnetic thermotherapy is a new modality for surgery. It applies a high-frequency electrical current passing through coils to generate a high-frequency magnetic field to heat up magnetic materials for treating targeted tissue. Using such a system, we aim to perform resection of rabbit liver without bleeding. Materials and Methods: The electromagnetic machine can provide a high frequency magnetic filed, with an input of 220V-55A-60Hz and an output frequency of 40 kHz, and a power of 20kW. The magnetic materials used in this study were fine needle arrays made of stainless steel. We used porcine liver to simulate the surgery in vitro. In an animal model using New Zealand White Rabbit, we inserted the needles along the liver area where resection was performed and then used the magnetic field to heat the needles for three minutes. After heating, we resected the desired liver area and the whole gallbladder. Results: From the in vitro test, the needles achieved better temperature distributions in the targeted area and made the liver tissue coagulate. In the animal model, the liver resection was performed without bleeding. There was no jaundice observed after the surgery. Five rabbits were used and all of them were alive after the surgery until the end of the experiment (3 weeks). Conclusion: The experiments showed that high frequency electromagnetic thermotherapy is very effective in liver resection surgery in an animal model. Without bleeding, there is no need for ligation or coagulation after resection. Our method has great potential for future clinical applications.

Original languageEnglish
Title of host publicationWorld Congress on Medical Physics and Biomedical Engineering - Surgery, Minimal Invasive Interventions, Endoscopy and Image Guided Therapy
PublisherSpringer Verlag
Pages8-11
Number of pages4
Edition6
ISBN (Print)9783642039058
DOIs
Publication statusPublished - 2009
EventWorld Congress on Medical Physics and Biomedical Engineering - Surgery, Minimal Invasive Interventions, Endoscopy and Image Guided Therapy - Munich, Germany
Duration: 2009 Sep 72009 Sep 12

Publication series

NameIFMBE Proceedings
Number6
Volume25
ISSN (Print)1680-0737

Other

OtherWorld Congress on Medical Physics and Biomedical Engineering - Surgery, Minimal Invasive Interventions, Endoscopy and Image Guided Therapy
CountryGermany
CityMunich
Period09-09-0709-09-12

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering

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