A technique for the determination of left ventricular mass bysignal-averaged electrocardiography

摘要

Signal-averaged electrocardiography (SAECG) as a diagnostic toolis discussed. It is an accurate, noninvasive, and relatively inexpensivetest that can identify patients who are at risk for ventriculararrhythmias. Commercially available machines are dedicated to dataacquisition and signal manipulation necessary to detect the presence oflow-amplitude, high-frequency electrical energy occurring at the end ofthe QRS complex, termed late potentials. Inherently, however, the SAECGprovides a measure of the electrical strength of the myocardium.Different analysis techniques are explored to determine whether acommercially available machine could produce meaningful estimates ofleft ventricular mass