Watch on YouTube to jump to specific locations.
Intro: 00:00
Impedance Blog Posts and User Guide: 01:20
Impedance Signals: 02:54
Impedance Signals – ECG: 03:06
Impedance Signals – ICG: 03:52
Impedance Signals – Derived Respiration: 05:48
Introduction to Impedance: 6:42
Introduction to Impedance Cardiography (ICG): 6:46
Introduction to ICG – dZ/dt Component Identification: 8:13
Impedance Processing: 8:47
ICG Processing – Common Statistics: 9:07
ICG Processing – Ensemble Averaging: 10:11
ICG Processing – Ensemble Time Windows: 10:57
ICG Processing – Which algorithm should you choose for the B point?: 11:40
ICG Processing – Which algorithm should you choose for LVET?: 13:40
ICG Processing – Electrode Distance: 14:54
Hands On: 15:47
IMP Application – Setup: 15:54
IMP Application – Analysis Screen: 28:51
IMP Application – Signal Editor: 39:56
IMP Application – Ensemble Editor: 49:30
IMP Application – Write Data to Output File: 50:53
IMP Application – Editing for Poor Electrode Connectivity: 52:03
Q&A Portion
“I frequently have ECG/ICG waveforms where the Q and B points are not plausible when placed as perfectly as you had in the initial ICG slide. I often have to move the Q to the right, or b to the left. Why would this be?”: 53:24
“I’ve run into some trouble measuring the distance between the two front electrodes depending on what the participant is wearing, as well as their body type given variation in the size of people’s chests. Do you have advice on obtaining that measurement? What is the margin of error for that measurement/how accurate does that measurement need to be to obtain valid ICG data?”: 54:04
“Is B point calibration method set automatically for each dataset or does it need to be changed manually depending on whether the B point inflection is apparent or not?”: 55:28
Supplemental Blog Posts:
All About ICG Series
All About ECG Series
HRV vs. IMP : Why R We Editing Twice?
Improving Data Quality: Cardiac Impedance