Real time virtual imaging of the heart's electrical activity: mapping and RF catheter ablation of non-sustained atrial tachycardia using the EnSite 3000/sup TM/ non-contact mapping technology

The currently available technology for the diagnosis of arrhythmias is capable of diagnosing only stable, patient tolerated arrhythmias: single-beat electrophysiologic imaging of the heart's electrical activity is not possible with currently available technology. For some sort of arrythmias (e.g., non-sustained atrial tachycardia) a system capable to do so seems to be of high value.