A PC-based generator of surface ECG potentials for computer electrocardiograph testing.
ABSTRACT The system is composed of an electronic circuit, connected to a PC, whose outputs, starting from ECGs digitally collected by commercial interpretative electrocardiographs, simulate virtual patients' limb and chest electrode potentials. Appropriate software manages the D/A conversion and lines up the original short-term signal in a ring buffer to generate continuous ECG traces. The device also permits the addition of artifacts and/or baseline wanders/shifts on each lead separately. The system has been accurately tested and statistical indexes have been computed to quantify the reproduction accuracy analyzing, in the generated signal, both the errors induced on the fiducial point measurements and the capability to retain the diagnostic significance. The device integrated with an annotated ECG data base constitutes a reliable and powerful system to be used in the quality assurance testing of computer electrocardiographs.
Conference Paper: Coding and on-line transmitting system for medical research[Show abstract] [Hide abstract]
ABSTRACT: A distributed data acquisition system is proposed. It provides parallel and simultaneous coding and on-line transmission of signals. This system has high accuracy of measurements and performance in sampling and transmission comparing with known analogsAUTOTESTCON '99. IEEE Systems Readiness Technology Conference, 1999. IEEE; 02/1999