Potential | “UP” electrode | LV wall | Septum | RV wall | “DOWN” electrode | |
---|---|---|---|---|---|---|
The refferent “isoelectric” potential of the P-R segment | Electric field sources | Mass (M) | 1.0 | 0.9 | 0.7 | Distance between electrodes: 1.5 + 0.3 + 0.2 + 1.7 = 3.7 |
Potential (P) | 50.0 | 50.0 | 50.0 | |||
Distance (Du) from the “UP” electrode | 1.5 | 1.8 | 2.0 | |||
Calculated potentials (M × P)/(Du × Du) | 22.2 | 13.9 | 8.8 | |||
The P-R potential: 44.9-34.9 = + 10 | 2.2 | 1.9 | 1.7 | Distance (Dd) from the “DOWN” electrode | ||
10.3 | 12.5 | 12.1 | Calculated potentials (M × P)/(Dd × Dd) | |||
Total potential on the “UP” electrode | 44.9 | 34.9 | Total potential on the “DOWN” electrode | |||
Normal early QRS potential relative to the P-R potential: DOWN deflection makes a Q wave | Electric field sources | Mass (M) | 1.0 | 0.9 | 0.7 | |
Potential (P) | 50.0 | -10.0 | 50.0 | |||
Distance (Du) from the “UP” electrode | 1.5 | 1.8 | 2.0 | |||
Calculated potentials (M × P)/(Du × Du) | 22.2 | -2.8 | 8.8 | |||
The absolute potential: 28.2-19.9 = +8.3 | 2.2 | 1.9 | 1.7 | Distance (Dd) from the “DOWN” electrode | ||
Relative to the P-R potential: 8.3-10 = -1.7 | 10.3 | -2.5 | 12.1 | Calculated potentials (M × P)/(Dd × Dd) | ||
Total potential on the “UP” electrode | 28.2 | 19.9 | Total potential on the “DOWN” electrode | |||
Negative potential of the “coronary” Q wave. due to reduced potential of the LV wall | Electric field sources | Mass (M) | 1.0 | 0.9 | 0.7 | |
Potential (P) | 10.0 | -10.0 | 50.0 | |||
Distance (Du) from the “UP” electrode | 1.5 | 1.8 | 2.0 | |||
Calculated potentials (M × P)/(Du × Du) | 4.4 | -2.8 | 8.8 | |||
The absolute potential: 10.4-11.7 = -1.3 | 2.2 | 1.9 | 1.7 | Distance (Dd) from the “DOWN” electrode | ||
Relative to the P-R potential: -1.3-10 = -11.3 | 2.1 | -2.5 | 12.1 | Calculated potentials (M × P)/(Dd × Dd) | ||
Total potential on the “UP” electrode | 10.4 | 11.7 | Total potential on the “DOWN” electrode |