MULTICHANNEL ECG MEASUREMENT FOR NONINVASIVE IDENTIFICATION OF HEART REGIONS WITH CHANGED REPOLARIZATION
Milan Tysler, Vladimir Rosik, Peter Kneppo
Abstract:
Multichannel system for ECG measurement and body surface potential mapping is introduced and its application for noninvasive identification of ischemic heart regions with changed repolarization is presented. The system uses up to 128 active electrodes, separate common mode signal sensing and active neutralization of the patient to get optimal signal quality. Microprocessor controlled and battery powered data acquisition module is connected through an optical extension cable to the USB port of a personal computer with Windows based measuring and data analysis software. In 11 patients with myocardial infarction, integral maps of the QRST interval of the ECG signal were measured before and after the percutaneous cardiac intervention. Changes in the maps together with information on a model of the patients’ torso volume conductor were used to calculate an equivalent current dipole characterizing the region influenced by the therapy. In this way, the affected ischemic region could be noninvasively identified in 7 patients.
Keywords:
body surface potential mapping, noninvasive cardiac diagnostics, dipole model of the cardiac generator
Download:
PWC-2006-TC13-004u.pdf
DOI:
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Event details
Event name:
XVIII IMEKO World Congress
Title:

Metrology for a Sustainable Development

Place:
Rio de Janeiro, BRAZIL
Time:
17 September 2006 - 22 September 2006
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