Acoustic Inverse Scattering for Breast Cancer Microcalcification Detection
Annual rept. 17 Aug 2008-16 Aug 2006
TEXAS UNIV AT DALLAS SOUTHWESTERN MEDICAL CENTER
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An advanced scalar inverse scattering theory developed by Colton, Kirsch, and others in the inverse scattering community can determine the shape of scatterers with size on the order of the wavelength. In addition to size and number, the morphology of breast microcalcifications is an important diagnostic indicator. Our hypothesis is that the linear sampling method LS, when augmented with a method for estimating the inhomogeneous Greens function for wave propagation in the breast, can be translated to an acoustic imaging system to detect, localize, and characterize microcalcifications in breast phantoms using data from the far-field scattering measurements. Progress continues on developing an appropriate estimator of the background Greens function from scattering data, and a phantom with hard, extended scatterers has been developed for proof-of-concept. Data acquisition and analysis is on-going, with one peer-reviewed conference proceedings paper in past year.
- Medicine and Medical Research