The Relationship Between the Mean Direction of Activation to the Anatomical Location of the PVC Origin Location

Roger Abaecherli1, Noel Boyle2, Peter van Dam3

  • 1Lucerne University of Applied Sciences and Arts
  • 2Cardiovascular Research Institute Basel
  • 3Lucerne University of Applied Sciences and Arts / University of California, Los Angeles



Oral Session


13:30 - 15:00 | Mon 29 Oct | Ambassador C | A3L-A

Biosensors & Biomedical Signals

Full Text


The use of the vector cardiogram (VCG) in clinical practice has declined over the past decades. The most frequent VCG derived parameters still used are the frontal plane QRS and T-wave angle. The use of precordial leads for the calculation of the VCG suffers from a high sensitivity to the corresponding electrode position. Accurate localization of the ECG electrodes on the body surface enables correction for this electrode positions. Markers can be used to localize the electrodes accurately on MRI, but this automatically requires a costly MRI scan. A 3D photo, registered to the MRI or CT data can support the localization of the ECG electrodes. In this study, we use the VIVO method to correct the VCG for the patient specific electrode positions. The validity of the electrode specific VCG is tested by localizing the origin of a PVC using the derived mean QRS axis.

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