Résumé
Epicardial-surface potential maps (ESPMs) during pre-excitation of the ventricles were constructed from body-surface potential maps (BSPMs) by an inverse solution. Forward transfer matrix was derived by using Green's theorem and boundary element method (BEM); to invert the matrix, Tikhonov regularization using a Laplacian operator and L-curve selection of regularizing parameters were used. We present BSPMs and ESPMs for eight pre-excitation sites at 30 ms into the delta wave. Locations of minima on ESPMs correspond to the pre-excitation sites. Locations of maxima and minima compare well with recorded data from primates and humans. These results demonstrate the accuracy of our inverse solution and its usefulness in clinical applications.
| Langue d'origine | English |
|---|---|
| Pages (de-à) | 215-216 |
| Nombre de pages | 2 |
| Journal | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings |
| Volume | 17 |
| Numéro de publication | 1 |
| Statut de publication | Published - 1995 |
| Événement | Proceedings of the 1995 IEEE Engineering in Medicine and Biology 17th Annual Conference and 21st Canadian Medical and Biological Engineering Conference. Part 2 (of 2) - Montreal, Can Durée: sept. 20 1995 → sept. 23 1995 |
ASJC Scopus Subject Areas
- Signal Processing
- Biomedical Engineering
- Computer Vision and Pattern Recognition
- Health Informatics