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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 56105 (05)
- University: Sharif University of Technology
- Department: Electrical Engineering
- Advisor(s): Fakharzade Jahromi, Mohammad
- Abstract:
- Breast cancer is one of the most common cancer types and is the leading cause of cancerrelated death among females according to American Cancer Society statistics. Breast screening and early detection is the most effective method of management and treatment of this disease. Currently, several imaging systems for breast cancer detection are being used among which microwave imaging has caught the attention of many as a promising tool for early breast cancer detection. Microwave imaging is considered as a non-invasive, relatively low-cost, Fast, convenient, and safe method for breast cancer screening. this research aims to implement a 3D imaging system that operates based on the microwave radar-based imaging principles. the system’s operation frequency is in the range of 4 GHz to 8 GHz, and it uses transmitting and receiving double exponential tapered slot antennas (bistatic method) for imaging. the system performance is verified by phantoms. This research is conducted in two phases: numerical simulation and practical data acquisition. In the simulation phase, CST and HFSS software have been used and the antenna, data acquisition system, reconstruction algorithms, and phantoms have been simulated. In the practical phase, a novel phantom was crafted using 3D printing technology which mimics both the anatomical and the dielectric properties of the breast tissues. Furthermore, an imaging system capable of adjusting the spatial location of the antennas and automatic phantom movement in the vertical direction along with the polar coordinates using stepper motors has been built. Millimeter-wave imaging has been carried out on phantom to test its feasibility for breast cancer detection. Results show that microwave imaging technology has the ability to detect breast cancer either as a standalone method or as a complementary one
- Keywords:
- Microwave Imaging ; Cancer Diagnosis ; Breast Cancer ; Dielectric Properties ; Early Detection ; Millimeter-Wave Imaging ; Bistatic Data Acquisition ; Confocal Algorithms ; Radar-Based Imaging ; Breast Phantom
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