Atrial fibrillation ablation in a patient complicated by persistent left superior vena cava and absent right superior vena cava
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Updated: Sep 27, 2025

Robotic Ablation of Atrial Fibrillation
Published on: May 29, 2015
Sou Takenaka1, Ayano Enzan1, Akihiko Ueno1
1Department of Cardiology IMS Katsushika Heart Center Tokyo Japan.
Insights
The Ensite system provides superior three-dimensional contact mapping compared to contrast-enhanced computed tomography angiography (CTA). CTA visualization of the right atrial appendage was inadequate for detailed analysis.
Area of Science:
- Cardiology
- Medical Imaging
- Electrophysiology
Background:
- Accurate three-dimensional anatomical reconstruction is crucial for cardiac electrophysiology procedures.
- Contrast-enhanced computed tomography angiography (CTA) is a common imaging modality.
- The Ensite system offers electroanatomic mapping capabilities.
Purpose of the Study:
- To compare the accuracy of three-dimensional contact mapping between the Ensite system and contrast-enhanced computed tomography angiography (CTA).
- To evaluate the delineation of cardiac structures, specifically the right atrial appendage, using both imaging modalities.
Main Methods:
- A comparative analysis of imaging data obtained from the Ensite system and CTA.
- Assessment of the quality of three-dimensional reconstruction and visualization of the right atrial appendage.
Main Results:
- The Ensite system generated a more detailed three-dimensional contact map.
- Contrast-enhanced computed tomography angiography (CTA) showed limitations in clearly delineating the right atrial appendage.
Conclusions:
- The Ensite system offers advantages for detailed three-dimensional anatomical mapping in cardiac procedures.
- CTA may have limitations for precise visualization of specific cardiac structures like the right atrial appendage.
Abstract:
A comparison between the three-dimensional contact mapping created by the Ensite system and that created by contrast-enhanced computed tomography angiography (CTA). Right atrial appendage was not well delineated on CTA.
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