Papers Published

1. Ko, Wen H. and Bergmann, Bruce P. and Plonsey, Robert, DATA ACQUISITION SYSTEM FOR BODY SURFACE POTENTIAL MAPPING., Journal of Bioengineering, vol. 2 no. 1-2 (1978), pp. 33 - 46 .
   (last updated on 2007/04/16)

   Abstract:
   Body surface potential mapping (BSPM) is aimed at the measurement of electrocardiographic potentials at a large number of points on the entire torso to give a time dependent potential map for more detailed analysis and diagnosis of the condition of the heart. Recent evidence of the non-dipolarity of the heart emphasizes the need for BSPM, and early studies have described several clinical situations in which BSPM is a superior tool for non-invasive medical diagnosis. A data acquisition system for digitally acquiring 180 simultaneous electrocardiographic surface potentials has been developed. Computer data processing yields up to 1000 equipotential contour maps per real time second. Data are acquired from 180 active dry electrodes in an inflatable vest structure. The ECG signal from each electrode is amplified, sampled once every millisecond, and multiplexed onto one of the 12 data channels. Digitized data are processed into isochronous, isopotential contour maps, or body surface potential maps.

   Keywords:
   DATA PROCESSING - Medical Information;COMPUTER GRAPHICS - Applications;SIGNAL PROCESSING - Digital Techniques;