Field and Temperature Shaping for Microwave Hyperthermia: Recent Treatment Planning Tools to Enhance SAR-Based...

Area of Science:

• Biomedical Engineering
• Medical Physics
• Oncology

Background:

• Microwave hyperthermia offers a promising non-invasive approach for cancer treatment.
• Current methods face challenges in reliability, affordability, and precise temperature control.
• Integrated diagnostic and planning tools are needed for enhanced efficacy.

Purpose of the Study:

• To introduce reliable, affordable, high-performance microwave hyperthermia tools for cancer therapy.
• To develop integrated methodologies for diagnostics, electromagnetic parameter estimation, and treatment planning.
• To present a novel optimization technique for improving thermal dose delivery.

Main Methods:

• Development and testing of multiple microwave hyperthermia tools.
• In vivo electromagnetic parameters estimation techniques.
• Specific absorption rate optimization using convex programming.
• Temperature-based refinement for mitigating thermal boundary effects.
• Numerical simulations in 3D head and neck scenarios.

Main Results:

• Demonstrated complementarity and interconnection of proposed techniques.
• Presented a novel combination of SAR optimization and temperature-based refinement.
• Numerical tests showed potential for improved temperature coverage in tumor targets.
• Preliminary results indicate enhanced treatment efficacy compared to standard methods.

Conclusions:

• The integrated approach offers a significant advancement in microwave hyperthermia for cancer treatment.
• The novel optimization technique shows promise for precise thermal dose delivery.
• Further research and clinical validation are warranted to fully realize the potential of these tools.