An Application of Electrocardiographic Lead Theory to Impedance Plethysmography
- 1 January 1971
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Biomedical Engineering
- Vol. BME-18 (1) , 38-41
- https://doi.org/10.1109/tbme.1971.4502787
Abstract
The change in mutual impedance ΔZ resulting from a change Δg in the conductivity of a particular region of a volume conductor is shown to be given by ΔZ = - Δg∫L t ø ·L 003C8; dv. L ø and L ψ are the lead fields associated with the two ports used to measure ΔZ. The integration is over the region where the conductivity has changed. The superscript t indicates that the lead field is to be evaluated following the change in conductivity. An example involving a spherical conductor is provided.Keywords
This publication has 3 references indexed in Scilit:
- AVERAGING TECHNIQUES EMPLOYING SEVERAL SIMULTANEOUS PHYSIOLOGICAL VARIABLESAnnals of the New York Academy of Sciences, 1964
- LEAD VECTORS AND TRANSFER IMPEDANCEAnnals of the New York Academy of Sciences, 1957
- Electrocardiographic LeadsCirculation, 1953