Title :
Measurement of cardiac electric field and current density during defibrillation
Author :
Deale, O.C. ; Lerman, B.B. ; Gao, S. ; Ng, K.T.
Author_Institution :
Cornell Univ. Med. Coll., new York, NY, USA
Abstract :
To better delineate the mechanisms for defibrillation, work has begun to integrate experimental and numerical analyses of the electric field and current density during defibrillation. Measurement techniques developed are described. A bipolar electrode that eliminates the measurement errors associated with conventional unipolar electrodes is presented. Measurement results are presented together with a finite-element field solver that is useful for the numerical analysis of defibrillation and prediction of field perturbation associated with the bipolar electrodes
Keywords :
bioelectric phenomena; biomedical measurement; cardiology; current density; electric field measurement; electrodes; finite element analysis; patient treatment; bipolar electrode; cardiac electric field; current density; defibrillation; finite-element field; measurement errors; numerical analysis; prediction of field perturbation; ventricular fibrillation; Current density; Current measurement; Defibrillation; Density measurement; Electric variables measurement; Electrodes; Finite element methods; Measurement errors; Measurement techniques; Numerical analysis;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1991. IMTC-91. Conference Record., 8th IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-87942-579-2
DOI :
10.1109/IMTC.1991.161655
