Ultrasonic Approach to Nonivasive Temperature Monitoring During Microwave Thermotherapy
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Microwave thermotherapy (MT) is an oncological treatment. At present the invasive thermometer probes are clinically used for temperature measuring during an MT. Any invasive handling of tumors is of high-risk. A new possible method of noninvasive monitoring of temperature distribution in tissue has been developed. An MT treatment of the experimentally induced pedicle-tumors of the rat was prepared. For 100 rat samples a strong correlation between the mean gray level in the ROIs in the ultrasound pictures and the invasively measured temperature in the range 37-44 °C was found. The correlation coefficient of the mean gray level and the invasively measured temperature is 0.96a0.05. A system for representation of changes of spatial temperature distribution of the whole tumor during MT is presented.
Keywordsnoninvasive temperature measurement, ultrasound, texture analysis, hyperthermia, oncological treat-ment, 3D temperature monitoring
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2001, vol. 10, č. 2, s. 32-37. ISSN 1210-2512
- 2001/2