Related Experiment Video
Updated: Aug 11, 2025

High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation
Published on: July 29, 2011
Rotor mechanism and its mapping in atrial fibrillation
Chang-Hao Xu1, Feng Xiong2, Wei-Feng Jiang1
1Department of Cardiology, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, 241 Huaihai West Road, Xuhui District, Shanghai 200030, China.
Identifying rotors, spiral wave generators of atrial fibrillation (AF), is key to treatment. Diverse 3D rotor structures and mapping resolution limits challenge clinical rotor identification, impacting treatment outcomes.
Area of Science:
- Cardiovascular Electrophysiology
- Medical Physics
- Computational Biology
Background:
- Atrial fibrillation (AF) treatment remains complex, with functional re-entry and spiral wave theories proposed for decades.
- Rotors, or spiral wave generators, are implicated in AF but reconciling experimental and clinical findings is difficult.
- Limitations in research methods and the intricate nature of rotor mechanisms hinder a unified understanding.
Conclusions:
- Clinical rotor identification is significantly influenced by the 3D complexity of scroll waves and mapping resolution.
- Further advancements in theoretical models and mapping technologies are crucial for resolving current limitations.
- Bridging the gap between basic research and clinical application requires improved methodologies and interdisciplinary collaboration.
More Related Videos
08:10Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
10:17Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
Related Concept Videos
Node Analysis for AC Circuits
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
Mechanism of Cardiac Arrhythmias
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
The Cardiac Cycle
The Process
Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and...
Relative Motion Analysis - Velocity
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
Electro-mechanical Systems
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...