1991 Volume 22 Issue 4 Pages 473-479
Myocardial ischemia usually is evaluated by echocardiography, ultrasound crystals, ATP activity, etc. Also, epicardial ECG still is one of the more important methods of myocardial function evaluation. The aims of this study were (1) easy production of a small injury current mapping electrode with low electric resistance, and (2) a means of analyzing the resulting signals using a personal computer. The tip of the electrode is made using Fujikura Chemical's Dotide D-753 and shaped like a cylinder 2 mm in diameter. It is connected to a wire 0.5 mm in diameter and isolated with epoxy resins. The signals are amplified and the mean electromotive force measured with a 12-bit A/D converter. The electrodes produced were electrically stable, and their injury currents were below 2 mV.
