Last time we introduced the following depiction of the dZ/dt signal: What we are looking at here is a single cycle of dZ/dt. In the IMP Analysis application, we distill a series of cardiac cycles down to a single average cycle for a given time period. It is from this average waveform […]
All About Cardiac Impedance Cardiac impedance is a measurement of the mechanical activation of the heart. By recording cardiac impedance in conjunction with the electrical activation of the heart, the electrocardiogram (ECG), we can gain insight into sympathetic nervous system influence through measures such as Pre-Ejection Period, Stroke Volume, and Cardiac […]
This video goes over the suggested processes for collecting Impedance Cardiography (ICG) signals.
HRV vs. IMP : Why R We Editing Twice? Collecting and editing the ECG signal is crucial to performing heart rate variability (HRV) and impedance cardiography (IMP) analysis. In both of these cases it is necessary to identify a landmark on the ECG waveform to identify a beat. Using a […]