Abstract
Instantaneous measurement of ventricular volume using tetrapolar conductance catheters facilitates evaluation of the effects of genetic alterations and cardio-genic drugs on ventricular function with pressure-volume loop analysis. The parallel conductance of cardiac muscle causes errors in left ventricular volume estimation. The frequency dependence of the effective conductance of cardiac muscle can be used to correct the measured conductance signal to reflect only the conductance of blood. Finite difference method numerical models of the electric and current density fields have been used to study the relative contributions of blood and muscle to the measured conductance signal in the mouse left ventricle.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1260-1261 |
| Number of pages | 2 |
| Journal | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings |
| Volume | 2 |
| State | Published - Dec 1 2002 |
| Event | Proceedings of the 2002 IEEE Engineering in Medicine and Biology 24th Annual Conference and the 2002 Fall Meeting of the Biomedical Engineering Society (BMES / EMBS) - Houston, TX, United States Duration: Oct 23 2002 → Oct 26 2002 |
Keywords
- Conductance catheter
- Numerical models
- Ventricular volume
ASJC Scopus subject areas
- Signal Processing
- Biomedical Engineering
- Computer Vision and Pattern Recognition
- Health Informatics