Keywords
Abstract
Congenital heart disease (CHD) affects approximately 0.8 to 1.2 percent of births worldwide, placing this disease among the most frequently diagnosed congenital disorders.1 In 2017, a study analyzed 52,725,227 adult patient admissions from community hospitals in 44 states whose data was collected from the National Inpatient Sample database, and of those admissions, 109,168 patients had CHD.2 Of those patients with CHD, 27,088 patients (24.8%) were diagnosed with arrhythmias.2 Physicians can diagnose arrhythmias using stethoscopes, electrocardiograms (ECGs), and event recorders. However, with immense advances in modern day medicine, electrophysiology (EP) mapping has proven to become a powerful tool to map electrical impulse conduction in the heart both accurately and precisely. The high spatial resolution in addition to reasonable temporal resolution and noise floor allows physicians to attribute arrhythmias and causes of unexplained syncope to specific regions of the myocardium. This paper explains how EP mapping is conducted, discusses the spatial and temporal resolution of EP mapping, and provides information on the accuracy, precision, and reproducibility of EP maps.