title: ECG techniques and technologies.
abstract: The electrocardiogram (ECG) continues to be a critical component of the evaluation of patients who have signs and symptoms of emergency cardiac conditions. This tool is now approximately 100 years old and has been a standard in clinical practice for more than half a century. Application of new signal processing techniques and an expansion in the use of additional leads allows clinicians to extract more and more information from the cardiac electrical activity. An understanding of the technology inherent in the recording of ECGs allows one to more fully understand the benefits and limitation of electrocardiography.
authors.affiliation: Chest Pain Evaluation Center and Department of Emergency Medicine, Carolinas Medical Center, 1000 Blythe Blvd., Charlotte, NC 28203, USA. lgarvey@carolinas.org
authors.forename: J Lee
authors.initials: JL
authors.lastname: Garvey
mesh_terms: D020811:Biomedical Technology / Q000639:trends*; D004562:Electrocardiography / Q000295:instrumentation* / Q000639:trends; D004867:Equipment Design; D006801:Humans