Mapping & Ablation · Module 1 of 7

3D Mapping Fundamentals

Technologist focusedInteractive lessonPrinciples first

Learn how localization, geometry and intracardiac electrical data combine to create the 3D model you see on the mapping workstation.

Learning objectives

BuildUnderstand how catheter location, anatomy and electrical data become a map.
QuestionRecognize that the display is a model generated from acquired data.
VerifyCross-check unexpected map behavior with independent information.
CatheterlocalizationIntracardiacelectrogramTiming /voltage3D mapdisplayA map is the product of multiple inputsIf one input becomes unreliable, the display can remain visually convincing while becoming misleading.

What creates trustworthy geometry?

Geometry is collected as a catheter moves through a chamber. Localization accuracy, reference stability, catheter contact, respiratory/cardiac motion and integration with other imaging all affect the model. A technologist should know what information is independent of the mapping display so unexpected changes can be cross-checked.

Tech perspective

The whole chamber suddenly shifts

The catheter did not appear to move on another available imaging source, but multiple mapped catheters shift together on the 3D display. Before treating this as anatomy, think about reference/localization integrity and follow the platform's approved troubleshooting workflow.

Which statement about a 3D map is most accurate?

Educational scope: This lesson does not replace institutional competency training, manufacturer instructions for use, or physician-directed procedural decision-making.
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