Computer-based data acquisition and analysis system for cardiac electrophysiological signals

This study describes the main features of a microcomputer-based data acquisition and analysis system of cardiac electrophysiological signals. The requirement set to the acquisition was to minimize the volume of stored data during the study. This was fulfilled by recording selectively only short, clinically relevant samples of the signal with several methods comprised from automatic recording triggered by the programmable stimulator or induced tachyarrhythmia to manually activated continuous recording. Versatile analysis functions were designed for recorded and restored signals, consisting of several automatic functions to calculate pacing intervals as well as interactive functions to determine different conduction intervals.<>