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Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
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Computer simulation-based nanothermal field and tissue damage analysis for cardiac tumor ablation.

S M C Hossain1,2, J B Zakaria3, M Ferdows3

  • 1Department of Applied Mathematics, University of Dhaka, Dhaka, 1000, Bangladesh. chapal@du.ac.bd.

Medical & Biological Engineering & Computing
|February 3, 2024
PubMed
Summary

Nano-assisted radiofrequency ablation enhances cardiac tumor destruction. Injecting iron oxide nanoparticles significantly improves ablation efficiency, reducing treatment time and protecting healthy tissue for better patient outcomes.

Keywords:
Arrhenius modelBioheat transferCardiac tumorFe3O4 nanoparticlesFinite element method (FEM)Radiofrequency ablation

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Oncology

Background:

  • Radiofrequency (RF) ablation is a minimally invasive cancer treatment.
  • Inadequate RF intensity can lead to incomplete tumor destruction and treatment failure.
  • Novel methods are needed to improve the efficacy of RF ablation for cardiac tumors.

Purpose of the Study:

  • To investigate the efficacy of nano-assisted RF ablation for cardiac tumors.
  • To evaluate the impact of iron oxide (Fe3O4) nanoparticles on ablation efficiency.
  • To assess the potential for reduced treatment time and improved patient survival rates.

Main Methods:

  • Development of a 3D thermo-electric energy model for cardiac tumors.
  • Simulation of nano-assisted RF ablation using varying Fe3O4 nanoparticle concentrations (up to 20%).
  • Quantification of tissue injury using a cell death model and fractional damage index.

Main Results:

  • Increased nanoparticle concentration correlated with higher thermal rates at a tissue depth of 10 mm.
  • A 7% Fe3O4 nanoparticle concentration achieved a 100% fractional damage index in 18 seconds.
  • Nano-assistance significantly reduced ablation time compared to conventional RF ablation.

Conclusions:

  • Nano-assisted RF ablation with Fe3O4 nanoparticles offers improved efficacy for cardiac tumor treatment.
  • This approach can potentially shorten surgical procedures and minimize damage to surrounding healthy tissues.
  • Further research may lead to enhanced long-term survival rates and reduced recurrence in cancer patients.