Using NI ELVIS, I am trying to create the capability to measure and analyze bioimpedance from a tetrapolar probe (with two current injecting electrodes and two voltage measuring electrodes). I was hoping that the interface could be the same as the existing bioimpedance analyzer. However, the measurement and analyzing software would need to be different. Does ELVIS have the capability to measure tetrapolar bioimpedance? Can the bipolar impedance analyzer be programmed to measure via a tetrapolar probe? Can the three-wire current-voltage anaylzer be used to this end? If it does not have the capability to measure tetrapolar impedance, can the 3-wire CV analyzer measure reactance (without measuring phase angle)?
