"In regards to the electrocardiogram, there is often a Statement made that,
'The a' in aVF means 'augmented' by a factor of 1.5 for sensitivity adjustment.
If the above statement is true, following equation should be true.
Here, $VF$ represents the original voltage in the VF direction, VI represents lead I.
If the above Statement is correct, the argument of Heart vector, $\theta$ should be
However, the correct formula by Novosel is as follows, as described below in the British Physiological Society's resource intended to "Beginner" level Medical School students . https://www.physoc.org/magazine-articles/trigonometry-of-the-ecg/
and my own calculations also lead to the same conclusion.
Therefore, in order to align with this formula:
It follows that:
Hence, aVF seems to be smaller than VF.
So the Statement that aVF is 1.5 times the true voltage of VF seems to contradict Novosel's formula. What do you think?
After several hours of study after post this question, I actually understood the answer. As a result, I realized that this question can be chunked down to the following question, which can probably be answered by anyone who understands the beginner's course in EKG.
- What is aVF and where is the potential difference?
- What is aVF 1.5x?
- How does the Vectorcardiogram relate to aVF?
- https://www.bem.fi/book/15/15.htm Written in Japanese