VIVO™ Accuracy Study

The VIVO accuracy study will assess the accuracy of locating a PVC/VT foci by pacing known
anatomical locations and comparing the VIVO outcome to that of the Carto system
(Biosense-Webster).

Inclusion Criteria:

- Subjects who are at least 18 years or older

- Subjects who are scheduled for PVC/VT ablation procedure with structurally normal
hearts and less than 10% scar.

- Subjects who have signed an IRB/EC approved Informed Consent Form and applicable
subject privacy protection authorization per local law

- Subjects will be selected without regard to gender or age (unless precluded by local
regulatory requirements)

Exclusion Criteria:

- Subjects who are contraindicated for CT or MRI (must be able to get one)

- Subject whose MRI or CT scan does not comply with the requirements of this protocol

- Subjects who are contraindicated for an electrophysiology procedure and/or
fluoroscopy:

- INR > 3

- Active infection

- Pregnancy: Females of childbearing potential with a positive pregnancy test.

- Existing mechanical heart valve