Breast Imaging System
This system was designed primarily for breast imaging. It couples a 64-channel electrical impedance tomography (EIT) system with a mechanical housing that interfaces to a clinical breast biopsy exam table. The 64 channels are configured as four circular planes of 16 electrodes, with each plane actuated by stepper motors to open and close so they can accept breasts of different sizes. The system, which is capable of recording impedances from 10 kHz to 10 MHz, is a so-called parallel drive system in which voltages and currents are driven and sensed on all electrodes simultaneously.