Optimization of power used in liver cancer microwave therapy by injection of Magnetic Nanoparticles (MNPs)
| Autor: | Valery V. Tuchin, Arash Ghobadi, Amirhossein Ahmadkhan Kordbacheh, Mehran Minbashi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Parabolic antenna Hyperthermia Carcinoma Hepatocellular Materials science medicine.medical_treatment Maghemite Health Informatics engineering.material Magnetics 03 medical and health sciences 0302 clinical medicine гипертермия medicine Humans Magnetite Nanoparticles Microwaves Liver Neoplasms магнитные наночастицы внешнее магнитное поле Hyperthermia Induced мощность medicine.disease Ablation Computer Science Applications Magnetic field Power (physics) 030104 developmental biology engineering Magnetic nanoparticles 030217 neurology & neurosurgery Microwave Biomedical engineering |
| Zdroj: | Computers in biology and medicine. 2020. Vol. 120. P. 103741 (1-11) |
| Popis: | In this paper, the effects of the input power of a microwave antenna (MWAN) on liver cancer tissue when injected with Magnetic Nanoparticles (MNPs) are studied. First, for basic simulation, we validated our results by comparison with other literature data. After that, we used a 1.8-cm hepatocellular carcinoma (HCC) tumor, which was treated experimentally for 3-min ablation using MWAN operating at a frequency of 2.45 GHz with a power of 90 W. At the next step of the simulation, the obtained results were compared with experimental results. As a last step, the effects of various MWAN input powers on the tumor after injection of MNPs were studied. Our results show that MNPs can be used as excellent heat sources and reduce input power significantly to produce a similar hyperthermia. When maghemite γ-Fe2O3 MNPs are used, the input power decreases from 90 W to 35 W. In addition, it has been shown that using a higher external magnetic field can treat a larger tumor. The optimized simulated values of the external magnetic field and the input microwave power are 15 mT and 35 W, respectively. |
| Databáze: | OpenAIRE |
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