Abstract
We have studied the spatial distribution of cardiac transmembrane potential around an extracellular unipolar electrode during electrical stimulation. The recordings were obtained from the bullfrog atrium along the transverse and longitudinal fiber directions. These recordings revealed the presence of a uniformly polarized region in the transverse fiber direction. In the longitudinal fiber direction, adjacent oppositely polarized regions coexist. These results are qualitatively predicted by an activation function developed for uncoupled fibers. They contradict the predictions of conventional cable models and also support newly developed models of cardiac tissue.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 43-44 |
| Number of pages | 2 |
| Journal | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings |
| Volume | 16 |
| Issue number | pt 1 |
| State | Published - 1994 |
| Externally published | Yes |
| Event | Proceedings of the 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 (of 2) - Baltimore, MD, USA Duration: Nov 3 1994 → Nov 6 1994 |
ASJC Scopus subject areas
- Signal Processing
- Biomedical Engineering
- Computer Vision and Pattern Recognition
- Health Informatics