Disposables

The EnSite Precision™ surface electrode kit consists of a system reference surface electrode and six surface electrodes placed on the patient in pairs: anterior to posterior, left to right lateral and superior (neck) to inferior (leg) (Figure 1).

The three electrode pairs form three orthogonal axes (X-Y-Z), with the heart at the center. Two PRSs are also used with the EnSite Precision Cardiac Mapping System: a PRS anterior, and a PRS posterior. The PRSs are connected to the patient using disposable, self-adhesive patches, and primarily function as sensors for metal distortion and patient movement.

During model collection, both impedance-based points and magnetic-based points are collected from a Sensor Enabled tool.

Impedance Data

Catheter location and navigation of all compatible tools, both conventional and Sensor Enabled, is based on the impedance field generated by the EnSite surface electrodes. When the surface electrodes are connected to the EnSite Precision Cardiac Mapping System, an 8 kHz signal is sent alternately through each pair of surface electrodes to create a voltage gradient along each axis, forming a transthoracic electrical field.

Conventional or Sensor Enabled electrophysiology catheters are connected to the EnSite Precision Cardiac Mapping System and advanced to the heart. As a catheter enters the transthoracic field, each catheter electrode senses voltage, timed to the creation of the gradient along each axis (Figure 2).

Using the sensed voltages compared to the voltage gradient on all three axes, the EnSite Precision Cardiac Mapping System calculates the three-dimensional position of each catheter electrode for all electrodes simultaneously.

The EnSite Precision Cardiac Mapping System displays the located electrodes as catheter bodies with real-time navigation. It permits the simultaneous display of multiple catheter electrodes (Figure 3) and also reflects real-time motion of ablation and diagnostic catheters in the heart.³ By tracking the position of the catheters, the system enables the creation of 3-D electroanatomical models of the cardiac chambers.

Create Faster High-Density Maps Using Any Catheter^1***

Greater Precision^2****

The EnSite Precision Cardiac Mapping System combines impedance and magnetics with a suite of innovative tools to give you comprehensive patient information.

• Enhance model creation with both impedance-field flexibility and magnetic-field stability.²
• Improve stability with redesigned patches that offer⁵:
  • Improved hydrogel adhesive⁵
  • Improved ECG patch placement options
  • More accommodation for patients of all sizes
• Maintain a seamless workflow, now with greater precision via an automated sheath filter.⁴

3-D Models With CT-Scan-Like Detail—27x^† Higher Point Density^4,6

Improve Mapping Time^1*

With EnSite Precision Cardiac Mapping System, you can:

• Map secondary arrhythmias up to 10x faster with the TurboMap feature¹
• Have access to both positive and negative morphology matching score that may accentuate scar regions and aid in visualization of critical isthmus channels¹
• Create faster, more accurate maps with greater consistency across cases¹

Use Onemodel and Onemap with the EnSite Automap Module

The OneMap and OneModel tools in the EnSite Precision Cardiac Mapping System can be used alongside the EnSite™ AutoMap Module for enhanced mapping capability. The EnSite Precision Cardiac Mapping System with the EnSite AutoMap Module lets you:

• Achieve 54% faster, real-time model creation with the OneModel tool — offering precise anatomic modeling^7,8
• Gain visibility into a patient’s rhythm in the fewest possible cardiac cycles when using the EnSite AutoMap module with the OneMap tool — providing simultaneous collection of anatomic and electrical points from multiple electrodes⁸
• Create higher density map in less time — automatically with any catheter^1***