Quantitative Comparison of Eight Vectorcardiographic Lead Systems
The large number of different, but presumably equivalent, vectorcardiographic lead systems in current use makes it imperative that their degree of interchangeability be investigated, and that standardization on some compromise system be achieved if possible. The situation is reminiscent of the controversy over the CF, CL, CR, and V leads in the early 'forties. Large and erratic variations of spatial loop configuration, orientation, and magnitude among eight different, presumably orthogonal, vectorcardiographic lead systems were found, so that direct interchangeability is questionable. The discrepancies were far greater than those between the different types of chest leads. Standardization on a universally acceptable compromise vectorcardiographic lead system would be desirable, to avoid confusion in the rapidly accumulating body of vectorcardiographic material, even though the compromise falls short of a theoretic ideal.
- Received October 13, 1958.
- © 1959 American Heart Association, Inc.