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[Multifield local hyperthermia as a method for heating deeply located neck tissues]
Eksperimental'Naia Onkologiia
|January 1, 1986
Summary
Local SHF-hyperthermia effectively heats deep neck tissues. Noncontact methods offer better temperature control for treating deep neck tumors, minimizing surface heat load.
Area of Science:
- Oncology
- Medical Physics
- Biomedical Engineering
Background:
- Local Superficial High-Frequency (SHF) hyperthermia is a therapeutic modality.
- Understanding thermal field distribution in neck tissues is crucial for effective treatment.
- Previous methods faced challenges with uniform heating and surface heat load.
Purpose of the Study:
- To investigate the thermal field distribution in neck tissues during local SHF-hyperthermia.
- To compare different irradiation methods for their efficacy in heating deep neck tissues.
- To determine optimal conditions for SHF-hyperthermia in treating deep neck tumors.
Main Methods:
- Utilized a two-field irradiation method for uniform deep tissue heating.
- Employed contact irradiation with "Luch-2" and "Luch-3" sets.
- Investigated noncontact irradiation using the "Parus" set.
Main Results:
- Contact methods elevated laryngeal temperature to 41-41.5°C for 25-30 min, but increased skin heat load.
- Noncontact "Parus" set heated deep neck tissues to 42-43°C with surface temperatures ≤41-42°C for 25 min.
- Prolonged noncontact hyperthermia led to a sharp rise in surface layer temperature.
Conclusions:
- Noncontact SHF-hyperthermia provides superior deep neck tissue heating compared to contact methods.
- Effective long-term SHF-hyperthermia for deep neck tumors requires integument surface cooling.
- Optimized thermal management is essential for safe and effective hyperthermia treatment.