Figure 1

Measurement configuration of the developed TAM system. Measurement configuration of the developed TAM system. The breast is placed between two electrode plates both of which are pressed with controlled pressure against the breast in a similar setup to X-ray mammography systems. A controlled constant voltage is applied to the top electrode and exit currents measured through the bottom electrode array of 3600 electrodes. These are addressed in 6 banks of 600 electrodes. Each bank is switched to a pair of ammeter modules which consist of 6 independent ammeter channels each. The ammeter channels return the demodulated admittance to the main control module for reconstruction to an impedance image.