Electrocardiography

**Definition:** Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.

**Tree numbers:** - E01.370.370.380.240 - E01.370.405.240

**Synonyms:** - ECG - EKG - Cardiography