Mapping Atrial Tachycardia (AT) and Atrial Flutter (AFl) Practice Test 2026 – The Comprehensive All-in-One Guide for Exam Success!

To effectively ablate typical atrial flutter (AFL) and visualize the cavotricuspid isthmus (CTI) line in a horizontal manner, the right anterior oblique (RAO) view is the correct choice. This perspective allows for optimal alignment of the CTI, which is crucial for targeted ablation procedures.

In the RAO view, the geometry of the right atrium is best visualized, and it provides a clear perspective of structures involved in typical atrial flutter. This view helps to delineate the right atrial wall and the CTI, making it easier to position the catheter accurately for effective ablation.

The anatomical features of the CTI, including its proximity to the inferior vena cava and tricuspid valve, are better appreciated in the RAO view. This facilitates precise catheter placement and energy delivery to interrupt the arrhythmogenic circuit associated with typical AFL.

In contrast, other views may not provide the same level of clarity of the CTI, leading to suboptimal ablation outcomes. Therefore, using the RAO view is essential for successful interventions targeting atrial flutter.