a physical 13th "lead" makes no sense. 12:51 Dec 20, 2020
this "calculation lead waveform" is kind of "virtual waveform" that corresponds to a "calculated / aggregated" value combined from the readings of the 12 physical leads.
It's a kind of "summary reading" calculated from the readings of the 12 "real" leads, so you don't need to look at all these 12 waveforms - this "calculated summary" should be enough.
As a matter of general principle, a "calculated" value can not be "read" directly - it can't be "primary data", only "derived data" - derived from "primary data / readings".
|