Abstract
Laplacian electrocardiography (ECG) is an attractive alternative approach toward the ultimate goal of mapping spatially distributed cardial electrical activity. Enhanced spatial resolution of mapping cardiac electrical activity is achieved by obtaining the Laplacian ECG over the body surface. The biophysics underlying this measurement is that the Laplacian ECG heavily weighs the contributions from the myocardial bioelectric sources that are closest to the recording location, whereas the potential ECG sums up the contributions from a large area of activated myocardial tissue. It is this nature of the Laplacian ECG that makes it possible to provide a more localized body surface manifestation of the underlying myocardial electrical activity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 133-138 |
| Number of pages | 6 |
| Journal | IEEE Engineering in Medicine and Biology Magazine |
| Volume | 16 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 1997 |
| Externally published | Yes |
Bibliographical note
Funding Information:The author wishes to thank M. o'Hara for his technical assistance in producing Figure 6. This work was supported in part by a grant from the Whitaker Foundation, a grant from Nihon Kohden R&D Center, a grant from the University of Illinois at Chicago Campus Research Board, and a grant from the Pittsburgh Supercomputing Center though the NIH National Center for Research Resources, grant 2 P41 RR06009.