Body surface mapping guided VT localization: user interface considerations

A user interface is presented to use multichannel ECG recordings to guide a physician during the ablation of ventricular tachycardia (VT). A database of paced body surface QRS integral maps is used for a fast and accurate first approximation of the site of origin of the VT. A multichannel pace mapping procedure is then used to further enhance the accuracy until radiofrequency ablation can be performed.