Microwave imaging for breast tumor: 2D forward and inverse methods

Microwave breast imaging techniques have been proposed over the past few years because of their potentially high specificity for breast cancer diagnosis due to the high contrast. in electrical properties between normal and malignant human breast tissues. We develop fast forward and inverse scattering algorithms to unravel multiple scattering effects. These algorithms are applied to form high resolution images to simulate an experimental prototype of MWI breast imaging system. Our methods are based on the fast Fourier transform, extended Born approximation, conjugate- and biconjugate-gradient, and contrast source inversion methods.