Key result
Standardizing the galvanometer for recording unipolar limb lead potentials at √3 cm per millivolt corrects inherent scalar differences in the frontal plane.
The paper presents a method for calculating standardizing factors to correct scalar differences in various electrocardiographic reference frames.
ECG recorders require √3 standardization for unipolar limb leads to align vectors; leaves open validation in digital systems.
Modifications in recorder standardization are required to correct inherent scalar differences among potential differences measured in a given electrocardiographic reference frame. In the frontal plane, agreement between the resultant vectors calculated from unipolar limb lead measurements and from standard lead measurements can be obtained by standardizing the galvanometer for recording the unipolar limb lead potentials at √3 cm. per millivolt. A method for calculating this "standardizing factor" and similar factors for other reference frames is presented and applied to calculations for the equilateral tetrahedron, the isosceles tetrahedron, and the cube.
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CRONVICH et al. (1950) studied Electrocardiography. Standardizing factor calculation method was evaluated. Standardizing the galvanometer for recording unipolar limb lead potentials at √3 cm per millivolt corrects inherent scalar differences in the frontal plane.
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