Clinical trial of Microwave Tomography imaging

This paper describes clinical trial and results of a microwave tomography system. This system was designed as a clinical trial prototype operating at 3GHz to 6GHz to detect woman-breast cancers. The subject numbers were 15 and it was non-blind test. Their images were reconstructed by the algorithm with a unique fast electromagnetic solver. Radiology doctors analyzed 30 images of 15 subjects and confirmed its working and feasibility.

I. Introduction

There are papers which introduce MT(Microwave Tomography) imaging [1] – [2]. They used conventional 2D FDTD method as a numerical forward solver to reconstruct their images except some case study of 3D method [3]. However, when we applied the method for our preliminary test system to reconstruct images, we found there were computing time and memory problems [4]. To solve these problems, we introduced a unique fast electromagnetic solver instead of FDTD method and they worked well. We are now calling this as FFS(Fast Forward Solver) [5]–[7].