The data acquisition system (DAS) developed aims to get the 3D breast cancer tomography with 8 current injection channels and 117 voltage measurement channels, capable of generating and measuring voltages and currents. By adopting special electrode and careful circuit layout, the initial bandwidth without calibration can reach 5 MHz. Electrical test results show that the system has a SNR greater than 67dB at 5MHz without digital enhancement method.

Additional Metadata
Publisher International Steering Committee on Electrical Impedance Tomography
Series 15th International Conference on Biomedical Applications of Electrical Impedance Tomography (EIT 2014)
Citation
Xing, Jinling, Li, Nan, Wei, Wang, Wang, Mingqian, Jiang, Danyang, Xu, Hui, & Zhang, Xiaolin. (2014). A High speed, high bandwidth Versatile DAS for breast cancer detection. In 15th International Conference on Biomedical Applications of Electrical Impedance Tomography (EIT 2014). International Steering Committee on Electrical Impedance Tomography.