Predicting endocardial potentials from epicardial potentials for external stimuli

Author

Wolf, P.D. ; Tang, A.S. ; Ideker, R.E. ; Pilkington, T.C.

Author_Institution

Dept. of Biomed. Eng., Med. & Pathol., Duke Univ., Durham, NC, USA

fYear

1988

fDate

4-7 Nov. 1988

Firstpage

208

Abstract

A model is presented for calculating the potential field in the heart for externally applied current knowing only the epicardial potential distribution. To test the model, a comparison is made between potentials predicted by the model and those measured in dogs. The measured potentials were acquired in three dogs using left and right ventricular plunge electrodes and atrial wire electrodes during pacing from the body surface. The predicted potentials were generated using the measured epicardial potentials and the heart geometry in a boundary integral formulation treating the heart as a homogeneous isotropic volume conductor. A comparison between the measured and predicted potentials for three different stimulus electrode combinations produced a mean correlation coefficient of 0.986, and a mean RMS error of 20.4%.<>

Keywords

bioelectric potentials; cardiology; atrial wire electrodes; boundary integral formulation; correlation coefficient; dogs; endocardial potentials; epicardial potentials; heart geometry; heart potential field; homogeneous isotropic volume conductor; mean RMS error; model predictions; ventricular plunge electrodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE

Conference_Location

New Orleans, LA, USA

Print_ISBN

0-7803-0785-2

Type

conf

DOI

10.1109/IEMBS.1988.94481

Filename

94481