The Effect of Limestone in Breast Cancer Detection by Microwaves
Öz
Breast cancer is the most widespread type of cancer among women around the world. Initial stage cancer detection is the most important in terms of reproducing of the tumors in an uncontrolled way and spreading to the other organs. Microwave imaging method is relatively effective method compared to other tools which are X-ray mammography, Magnetic resonance imaging (MRI) and ultrasound. They have some shortfalls such as X-ray mammography suffers from high missed-detection and false-detection rates. Also, it is ionizing and uncomfortable compression of the breast. Because of this, microwave imaging method has the potential to overcome the some shortfalls of the X-ray mammography, MRI, and other existing known methods. In addition, Ultra-wide band (UWB) radar technique is a quite attractive technology for many applications, especially for early breast cancer detection. In this paper, both an UWB bow-tie antenna with enhanced bandwidth and a 3D breast model which has varied permittivity and conductivity is designed in CST software simulation tool to solve electromagnetic field values. Return loss and radiation pattern characteristics which are significant antenna parameters are simulated and obtained whether the antenna possess an efficient characteristic or not. Tumor cannot be detected by existing methods since there is limestone layer, which is occurred by milk ducts, surrounding of tumor. Therefore, limestone’s effect on the tumor is studied in order to investigate the radiation from the skin with reference to whether there is limestone or not surrounding of tumor. Also, electric field and magnetic field values over the breast tissue with tumor or tumor which is surrounded by limestone, or without tumor, and limestone instead of tumor are evaluated. Limestone’s effect is clearly observed when there is limestone surrounding of tumor or not. So, limestone is a crucial factor for breast cancer detection methods.
Anahtar Kelimeler
Kaynakça
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Ayrıntılar
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Türkçe
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Bu kişi benim
ADANA BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ, HAVACILIK VE UZAY BİLİMLERİ FAKÜLTESİ
Türkiye
Yayımlanma Tarihi
15 Haziran 2017
Gönderilme Tarihi
3 Şubat 2017
Kabul Tarihi
31 Mayıs 2017
Yayımlandığı Sayı
Yıl 2017 Cilt: 32 Sayı: 2