Abstract
A computer program for ECG analysis and interpretation developed at the University
of Porto, Portugal is presented. The program runs on a microcomputer and employs the
three-lead Frank VCG. The signals are sampled at 250 Hz with 8-bit precision during
5.5 s. Details on signal conditioning and wave recognition and measurement techniques
are given. The diagnostic part of the program uses decision-tree logic. The decision
rules are mainly derived from the Washington Code. The diagnostic accuracy of four
classes (normal, left and right ventricular hypertrophies and myocardial infarction),
evaluated in a sample of 1,075 pediatric and adult patients and classified by ECG-independent
means was 76%. The program is currently being evaluated on the CSE database.