A clinical microwave hyperthermia system with multipoint real-time thermal dosimetry

Area of Science:

• Oncology
• Medical Physics
• Biomedical Engineering

Background:

• Clinical hyperthermia utilizes microwave generators for tumor treatment.
• Accurate temperature monitoring is crucial for effective hyperthermia therapy.
• Real-time feedback mechanisms are needed to optimize thermal dose delivery.

Purpose of the Study:

• To describe a novel clinical hyperthermia system.
• To detail a real-time thermal dose calculation and display feature.
• To evaluate the system's capability for homogeneous tumor heating.

Main Methods:

• A 915 MHz microwave generator with multipoint thermocouple thermometry (16 points).
• Computer-controlled power adjustment to maintain target temperatures.
• Real-time calculation and display of cumulative thermal dose every 30 seconds.

Main Results:

• Simultaneous temperature monitoring at 16 points.
• Computerized control ensures consistent temperature regulation.
• Real-time thermal dose display facilitates homogeneous tumor heating.

Conclusions:

• The described hyperthermia system offers precise temperature control.
• Real-time thermal dose monitoring enhances treatment efficacy.
• The system contributes to more homogeneous heating of tumors in clinical settings.