An electocardiogram system for synthesizing leads and providing an accuracy measure

An electrocardiogram (ECG) system includes a database for containing a number of entries. Each entry contains data for synthesizing a 12 lead ECG from received ECG lead signals, and an accuracy measure of the synthesized 12 lead ECG signals. The received ECG lead signals may be missing one or more leads due to detachment of the corresponding electrode, or because the location on the patient is unavailable. The synthesized 12 lead ECG synthesizes the missing leads. Alternatively, the received 12 lead ECG may be derived from a patient in a different body position than a reference position. The synthesized 12 lead ECG translates the ECG to one for the patient in the reference body position. In addition, a synthesized lead signal may be compared to a received lead signal to detect anomalous signals.