Application of SEM Technique to Characterization of Breast Tumors

This paper describes an approach for the microwave characterization of breast tumors based on the 2D-FDTD simulation. Tumors and the breast tissue are modeled as dielectric targets and homogeneous dispersive media by Debye model. The CNRs (complex natural resonances) of the tumors, which can be used to characterize the tumors, can be extracted by the Prony´ s method directly from the time-domain response from the tumors. The tumor response is obtained by the FDTD simulation. Some comparisons are done with different tumors and different frequencies of input pulse. The results show that this technique has the potential as an assistant tool to characterize the breast tumors in conjunction with other imaging techniques for diagnosis.