Proposed is the new technique for analysis and visualization of vectorcardiograms based on the 3d phase diagrams. The regular Frank 3d lead system was considered as the signal source to construct the 3d vector space (VCG). The three cardio signals from the lead system (VCG), representing the currents in the body, and the three integrated in time signals, representing the corresponding charge flows, were used to form 3d phase diagram. This diagram is considered as a new compact description of the dipole object properties in the 3d space, combining simultaneously information about the charge movements and the changes in values and orientation of the current.
VCG recordings related to horizontal-(x) and vertical-(y) axes in the mdio-lateral plane and the horizontal-(z) axis in the sagital plane for a healthy control.
VCG recordings related to horizontal-(x) and vertical-(y) axes in the mdio-lateral plane and the horizontal-(z) axis in the sagital plane for a myocardial infarction patient.
3D phase diagram constructed from the raw VCG recordings for the healthy control.
3D phase diagram constructed from the raw VCG recordings for the myocardial infarction patient.
Comparing raw VCG recordings with the 3D phase diagrams between the healthy control and the myocardial infarction patient, it can be easely seen that the 3D phase diagram shows the control-patient VCG discordance in much more clear and obvious way. Detailed description of this approach is available for download as an electronic copy of the article at the publisher site, or as a printed version: "Valeri Goussev,3D phase diagram in vectorcardiography, Journal of Biomedical Engineering and Informatics, 2017,Vol.3,No.1"
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