Reconstruction of 12-Lead Electrogram From Intracardiac Signals From Defibrillators During or After Implantation

Reconstructing a 12-lead surface ECG from intracardiac EGM vectors of patients implanted with defibrillators can be of great value. It allows implantable devices that have thus far been used exclusively for arrhythmia detection and treatment, to be used for diagnostic purposes in similar ways as the ECG. The advantage of the reconstruction process is that it provides real-time continuous monitoring, which can be used for multiple purposes, including but not limited to: 1. Ischemia detection 2. Myocardial Infarction detection 3. Electrolyte abnormalities detection 4. Assessment of effect of medications 5. Improved rhythm discrimination