Ultrasound Tomography-Guide TRM Technique for Breast Tumor Detecting in MITAT System

Abstract

Microwave-Induced Thermo-Acoustic Tomography (MITAT) is a promising technique in biomedical imaging field. It has predominant advantages in both contrast and resolution compared with conventional microwave or ultrasound imaging system for malignant tumors. In this paper, Time Reversal Mirror (TRM) imaging technique based on numerical method Pseudo-Spectrum Time Domain (PSTD) for MITAT imaging is studied computationally. To obtain the precise position of the tumors, the ultrasound tomography-guide TRM routine is presented to decrease the effects from the indetermination of the ultrasound speed distribution parameters. The validity of this method is testified by some numerical simulations.