Detectability of Tumor Locations in Breast Phantoms Using SSTDR Microwave Measurements
Year: 2026
Type: conference-paper
Abstract: Early detection of breast cancer, the most prevalent cancer among women worldwide, is essential, as it significantly enhances the likelihood of successful treatment and recovery. Conventional imaging techniques such as mammography and magnetic resonance imaging (MRI) present limitations related to radiation, discomfort, cost, and accessibility, motivating research into alternative approaches. Microwave breast imaging has emerged as a promising candidate, offering non-ionizing, noninvasive, and potentially more cost-effective tumor detection. In this preliminary study, we investigated the feasibility of using Spread Spectrum Time-Domain Reflectometry (SSTDR) for tumor detection in oil-based breast phantoms, particularly the tumor locations that could or could not be detected with our specific setup and frequency range. A metal scatterer was repeatedly inserted and removed in an oil-based phantom to evaluate measurement consistency, and the measurements were compared to cases without tumors to determine conditions under which tumor-like objects could be detected. The results suggest that SSTDR can provide consistent measurements, but that the 0.5-4 GHz frequency band may not be sufficient to see tumors near the center of the breast. This indicates that broader and / or lower frequency antennas and setups may be beneficial.
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7212229016