Electrocardiograms based Electrodes, Advantages, Disadvantages, Challenges, and Limitations: A Methodological Review

A. Mahalakshmi and Judith Justin,

The advancement in wireless technologies and mobile-based health care devices has gained huge attraction towards the development of bio-potential electrodes for monitoring a patient's physiological factors. The traditional wet adhesive wire, known as Ag/AgCl, is extensively utilized for clinical activities and provides the most exceptional signal outcomes. When these electrodes are used without adhesives, gels, and skin contact are under existence, and they have to be acceptable for medical usage. As well, extensive comparison and knowledge towards the use of various electrodes are not provided in any literature. Here, this work explores the specific methods of noncontact and dry electrodes for clinical utilization by elaborating electrical models for insulated, bare, and noncontact wires that are provided with limited performance along with measured data. Various data sources and theories may demonstrate the practice of electrode resistance, which commonly leads to increased noise based on coupling capacitance. Various theoretical analyses are done with a more comprehensive study with recent electrode developments in literature. This review shows the highlights of multiple approaches that use dry electrode technology for facilitating neural and cardiac monitoring with various confronts and challenges in it.

Volume 12 | Issue 7

Pages: 409-418

DOI: 10.5373/JARDCS/V12I7/20202021