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Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration

  • Authors:
    • How Tseng
    • Sey‑En Lin
    • Yen‑Liang Chang
    • Ming‑Hsu Chen
    • Shih‑Han Hung
  • View Affiliations / Copyright

    Affiliations: Department of Biochemistry, Taipei Medical University, Taipei 110, Taiwan, R.O.C., Department of Pathology, Taipei Medical University Hospital, Taipei 110, Taiwan, R.O.C., Department of Otolaryngology, Head and Neck Surgery, Cathay General Hospital, Taipei 106, Taiwan, R.O.C., Department of Otolaryngology, Taipei Medical University Hospital, Taipei 110, Taiwan, R.O.C.
    Copyright: © Tseng et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 763-768
    |
    Published online on: December 23, 2015
       https://doi.org/10.3892/etm.2015.2956
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Abstract

The radiofrequency ablation (RFA) lesion size is posited to be disproportionate to the total delivered energy, and temperature‑time integration (TTI) may have a more critical effect on lesion size. The present study aimed to evaluate this hypothesis by determining the temperature threshold and temperature distribution over tissues during the RFA lesioning process. Using an ex vivo chicken tissue model and an in vivo rabbit model with RFA applied for 2 min under various target temperature settings, the resultant lesions were evaluated histologically using Masson's trichrome stain. The temperature distribution over the tissue during the RFA lesioning process was also determined using a VT02 Visual IR Thermometer. It was revealed that the thermal injury threshold for RFA in the chicken tissues was ~65˚C, but that it ranged from 55‑65˚C in mammals. Using infra‑red thermal imaging, the temperature gradient (from the center to the periphery) during the RFA lesioning process demonstrated a uniform heat diffusion pattern. This data supports the proposed hypothesis that TTI is a critical parameter in determining RFA lesion size and can be applied clinically using the following equation: [Target temperature ‑ 55 (˚C)] x time (sec) is proportional to RFA lesion size.
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Copy and paste a formatted citation
Spandidos Publications style
Tseng H, Lin SE, Chang YL, Chen MH and Hung SH: Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration. Exp Ther Med 11: 763-768, 2016.
APA
Tseng, H., Lin, S., Chang, Y., Chen, M., & Hung, S. (2016). Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration. Experimental and Therapeutic Medicine, 11, 763-768. https://doi.org/10.3892/etm.2015.2956
MLA
Tseng, H., Lin, S., Chang, Y., Chen, M., Hung, S."Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration". Experimental and Therapeutic Medicine 11.3 (2016): 763-768.
Chicago
Tseng, H., Lin, S., Chang, Y., Chen, M., Hung, S."Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration". Experimental and Therapeutic Medicine 11, no. 3 (2016): 763-768. https://doi.org/10.3892/etm.2015.2956
Copy and paste a formatted citation
x
Spandidos Publications style
Tseng H, Lin SE, Chang YL, Chen MH and Hung SH: Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration. Exp Ther Med 11: 763-768, 2016.
APA
Tseng, H., Lin, S., Chang, Y., Chen, M., & Hung, S. (2016). Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration. Experimental and Therapeutic Medicine, 11, 763-768. https://doi.org/10.3892/etm.2015.2956
MLA
Tseng, H., Lin, S., Chang, Y., Chen, M., Hung, S."Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration". Experimental and Therapeutic Medicine 11.3 (2016): 763-768.
Chicago
Tseng, H., Lin, S., Chang, Y., Chen, M., Hung, S."Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration". Experimental and Therapeutic Medicine 11, no. 3 (2016): 763-768. https://doi.org/10.3892/etm.2015.2956
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