Antenna characterisation and optimal sampling constraints for breast microwave imaging systems with a novel wave speed propagation algorithm
Loading...
Date
2014-04
Authors
Rodriguez Herrera, Diego
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Abstract
Breast microwave imaging (BMI) is a novel modality that complements current breast screening tools. Microwave radar imaging creates a radar cross-section (reflection) map of the breast. The difference in permittivity between healthy and malignant tissue is between 10-50%. This contrast is significantly higher than that obtained with x-rays and supports the use of microwave imaging for breast cancer diagnosis.
Prior to widespread clinical use, some areas require further study. Firstly, the performance of three different antennas was carried out, to assess their suitability for a BMI system. Secondly, the sampling constraint of a circular scan geometry was studied and tested using experimental phantoms and these antennas.
For accurate breast BMI reconstruction, the transmission speed of the radio waves inside the breast must be determined. The tissue composition of each patient is different, making this task challenging. This work presents an algorithm for wave speed estimation in different mediums.
Description
Keywords
BMI, Microwave Imaging, Microwave, Breast Cancer Detection, Breast Cancer, Antenna, Radar system, Microwave holography
Citation
Harvard