our system provides a non- invasive bio -impedance assessment and cardiac output and hemodynamic parameters
NICaS hemodynamic system utilizes dual impedance electrodes, placed on two limbs, preferably one on the wrist and the other on the contralateral ankle. This type of electrical surveillance is called Regional ICG, or RIC. This technology is based on two independent principles: The first is the fact that the electrical conductance of the blood is higher than that of the surrounding tissue structures. Consequently, with each arterial systolic expansion (pulsation), an increase in the electrical conductance (or reduction in the electrical resistance) of the body is measured. This change in systolic resistance (impedance) is marked ΔR, and the baseline body resistance is R . The second principle, which is called the Granov Goor Index (GGI), is based on the systolic time intervals (STI) which, similarly to Left Ventricle Ejection Fraction (LVEF), can assess cardiac function i.e., as indicated by LVEF measurement, the lower the GGI the graver the condition.
The operation of NICaS hemodynamic system
The NICaS is a tetra polar apparatus which operates by an alternating current of 1.4 mA and 32 kHZ. The analog resistance signals are received by the device, where they are amplified and filtered. These signals are then transmitted to a microprocessor, where they are digitized and analyzed via mathematical algorithms. ECG, resistance and respiratory waveforms as well as numerical patterns are displayed on the screen. The collected data can be easily printed or viewed through several easy to define reports.