The mapping of neutral ECG potential points on the thorax using a network model of ECG

A bounded domain has been defined by the Einthoven axes over the thorax in the frontal plane. Using spin harmonic generator matrix model criteria have been found for locating points of null (or minimum) ECG potential with respect to WCT. The locus of these null points may be termed the neutral axis. The monopolar ECG has been mapped at about 45 points on the frontal surface of the thorax bounded by Einthoven axes. The Autocad version .10 package has been used for creation of a sampled value database from ECG records. The time plane as well as spin harmonic frequency planes have been used to map the neutral axis locus. A preliminary selective criterion of probability greater than 0.5 has been used for selection of ECG records to test neutrality property. The observation suggests that the locus of neutral points intersects the RA-LA axis at a location between the suprasternal notch and the left arm and the RA-LA axis at a point 6-12 mm below the RA-LA axis.