الفهرس | Only 14 pages are availabe for public view |
Abstract This study aimed to implement a finite element model and design an antenna array to treat breast cancer using hyperthermia by applying microwave irradiation of cancerous tissues to raise its temperature between 40 to 44 °C with and without nanomaterials. There temperatures are cytotoxic for the cancerous tissues, which have a low blood perfusion, making it difficulties to get rid of the heat, thus causing apoptosis of cancerous cells as a direct response to applied heat. A circular microstrip patch antenna array was applied in this study to show the viability and safety of using microwave-induced hyperthermia treatment for breast cancer. It was used with and without nanomaterials. However, it is still challenging to apply targeted heat treatment without putting neighboring healthy tissues in jeopardy. To better understand the localization of heating brought on by microwave irradiation, which was being studied for the prevention of damage, the treatment of hyperthermia, and the early detection of abnormalities, nanomaterials were used as a microwave absorber. There may be an accumulation of nanomaterials in or around tumor areas, which might aid in concentrating heat solely on the tumors. Nanopartciles-assisted hyperthermia treatment numerical modelling may be used as a technique for pretreatment planning to investigate temperature distribution throughout the body and modify temperature parameters before hyperthermia. The most fundamental problem with the current numerical simulation is the common assumption that the model has a rather than the real geometry, use basic phantom geometry. In the present realistic breast tissue model, A device with a microwave applicator (microstrip patch antenna) operating at 2.45 GHz was used to directly study microwave imaging and hyperthermia therapy of malignant tissues employing nanoparticles and two temperature monitors within and outside breast cancers. CST studio was used to provide simulated findings for SAR values and transient temperature inside normal and cancerous breast tissues. Results from our finite modeling simulation of hypethermia treatment of breast cancer showed the following: 1. SAR results at 2.45 GHz within the tumor without prescence of NPs was 0.031 W/kg. 2. Without using NPs, the temperature inside breast tumor tissues was 38.81 °C as compared to 37.5 °C of the outside normal breast tissues at frequency 2.45 GHz. 3. When using silver naniparcticles (Ag-NPs), the temperature inside breast tumor tissues rose to 42.44 °C as compared to 39.0 °C of the outside normal breast tissues at frequency 2.45 GHz. 4. When using gold nanoparticles (Au-NPs), the temperature inside breast tumor tissues rose to 44.26 °C as compared to 39.0 °C of the outside normal breast tissues at frequency 2.45 GHz. 5. When using aluminium nanoparticles (Al-NPs), the temperature inside breast tumor tissues rose to 40.63 °C as compared to 39.0 °C of the outside normal breast tissues at frequency 2.45 GHz. Thus, when adding Au-NPs the temperature rises over 44 °C, and the hyperthermia is realised at 2.45 GHz without damaging the nearby healthy tissue but adding Ag-NPs and Al- NPs didn‟t increase the temperature to sufficient levels to enhance hyperthermia treatment of breast cancer tissues. |