Three-dimensional mapping utilizes magnetic or impedance fields to render the heart and the catheters digitally on a specialized computer system. High fidelity, high precision study of the cardiac anatomy, tissue health and all activation pathways can be included in these depictions, which use tens of thousands of individual data points to create their final images. This is critical for the study and cure of certain, less common heart rhythm disorders which cannot be depicted on the standard multi-channel recording system.

These are some examples of fully rendered electroanatomic maps using our Ensite Velocity and CARTO 3 systems.

Complex Ablation


Ensite Velocity 3-Dimensional map showing front and back of left atrium.  Note how the back is a fairly uniform shade of purple, indicating healthy heart tissue, whereas the front is heavily coloured in red and orange, indicating areas of diseased tissue, with some grey areas indicating outright scar.


Below is a colour activation map of atypical left atrial flutter.  Note the slowing of conduction across the top of the atrium.  The brown discs indicate where ablation was performed to cure this atrial flutter.

Atrial Flutter

CARTO 3 electroanatomic map of focal atrial tachycardia arising from the roof of the right atrium. Beige discs indicate the ablation site which cured this patient.

Focal Atrial Tachycardia

Ensite Velocity image of the Right Atrium showing the site of a Focal Atrial Tachycardia.  This was localized to the superior Right Atrium just outside the Superior Vena Cava.  Brown dots indicate where ablation was clustered to cure this patient