| Autor: |
Miuta Carmina Rau, S. Ojica, A. Banarescu, D. Costandache, O. Baltag |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
IFMBE Proceedings ISBN: 9783642042911 |
| DOI: |
10.1007/978-3-642-04292-8_43 |
| Popis: |
The paper presents a comparative study concerning the utilization of the thermographic method for the tumor structures detection, in infrared and the microwaves radiometry. This noninvasively technique makes use the human body emission in accordance to Planck radiation law. The human body respects the same laws regarding electromagnetic emission as the environmental bodies, and can be considered as a grey body. The intensity of radiation depends on the temperature and the frequency (wavelength) of the electromagnetic radiation. Compared with the infrared thermography (sensitive to surface temperature), the microwave radiometry allows the detection of depth malignant structures because the microwaves has a greater wavelength and are less absorbed by the tissue traversed from the tumor to the surface. The temperature resolution of the microwave thermography is comparable with the temperature resolution of infrared thermography which is about 0,10C. The resolution is connected to the fact that the difference between the environmental temperature (250C) and the average measured body temperature (370C) is relatively small. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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