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This book deals with a new high resolution (HRE) method of recording the ECG. The method consists of recording from 15 thoracic leads, ten of which are placed anteriorly and five of which are placed posteriorly. These 15 leads are used as input to a high frequency recorder system with sampling at 1-msec intervals and are subsequently displayed using a polar coordinate system. Unfortunately, the author does not give the exact details of the computer processing system. In fact, his statement is that computer programs are best understood by another computer, and there is insufficient detail in the book for the knowledgeable reader to write a similar program without a fair amount of difficulty.
Basically, the system appears to consist of analog to digital conversion of the ECG at 1-msec intervals and computation of current density profiles from the potentials that are seen at each electrode using the electromagnetic field
Abel F. High Resolution Electrocardiography. Arch Intern Med. 1978;138(2):314–315. doi:10.1001/archinte.1978.03630260096030
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