Overview Of The Carto 3 System Flashcards
Electroanatomical Mapping
Real-time, three-dimensional (3D) maps of the heart chambers. These maps can contain anatomical, electrical, and ablation data and can be displayed in a variety of ways (voltage, Local Activation Time, etc.)
Location Pad
A key part of our magnetic technology, the location pad is a device that is placed under the patient table. It contains magnetic coils that generate a low amplitude magnetic field to enable accurate location.
3 Back Patches
Three patches with attached sensors that are placed on the patient’s back. The sensors placed on the back patches are part of the Body Coordinate System (BCS), which helps create a fixed reference. The patch current wire receives the current data for Advanced Catheter Location technology.
3 Chest Patches
Three patches with attached sensors that are placed on the patient’s chest, important to the ACCURESP® Module. The patch current wire receives the current data for Advanced Catheter Location technology.
PIU
Patient Interface Unit. The device which acts as interface between the catheters and other EP equipment, receiving real-time location data and ECG calculations.
Impedance-Based Technology
A competing technology that involves sending current to body surface patches and measuring changes to impedance between them in order to determine catheter location.
Magnetic Technology
A locating technology which functions similar to GPS satellite positioning. The location pad generates a magnetic field. A sensor-based (NAV) catheter entering the field can detect its location based on the measured strength of the magnetic field.
Current-Based Technology
A locating technology which utilizes electrical currents. Each electrode on a catheter emits a unique current frequency that the 6 patches detect and use to calculate a current ratio that can be used to determine the catheter’s location.
ACL
Advanced Catheter Location: a hybrid locating technology combining both magnetic technology and current-based technology.
Tri-Axial Sensor
The sensor design of Biosense Webster navigational catheters. The sensor contains three coils pointing in three different axes (tri-axial) that transmit data about the orientation of the catheter tip.
Roll
Rotation of the catheter tip.
Pitch
Degree of slope.
Yaw
Side-to-side turning orientation of the catheter.
Six Degrees of Freedom
The ability to measure six components of a catheter tip’s position: Up-down, left-right, forward-back, pitch, yaw, and roll. Made possible by the tri-axial sensor.
Hybrid Technology
A technology which combines two or more technologies.
Point-by-Point Mapping
A method of creating 3D anatomical maps. Point-by-Point maps are built by moving a navigational catheter to different points in the heart and acquiring electrical data at these points. The areas between points are filled in (interpolated) by the system, which attempts to create an ellipsoid shape.
FAM
Fast Anatomical Mapping. A method of creating 3D anatomical maps. The system applies a volumetric algorithm as the physician moves the navigational catheter around a chamber, which allows anatomical maps to be quickly generated by processing a large amount of location data, as opposed to connecting individual location points.
Connection-of-Choice
The third key feature of the CARTO® 3 System. A simplified connection system revolving around the PIU, which acts as a central point of connection, utilizing “plug-and-play” features to connect any catheter of choice.
Plug-and-Play
The system automatically recognizes any Auto-ID Biosense Webster catheters plugged into the PIU, eliminating the need for a pin box.
MEM
Multi-Electrode Mapping technology. MEM catheters acquire several mapping points simultaneously instead of one at a time.
ACCURESP® Module
A module which monitors the effect of respiratory motion during mapping to increase accuracy in data collection during the end-respiratory cycle.
