Radiofrequency ablation guided by real-time cardiovascular magnetic resonance

Area of Science:

• Cardiovascular Imaging
• Electrophysiology
• Radiology

Background:

• Cardiovascular magnetic resonance (CMR) is increasingly used in electrophysiology (EP) procedures.
• CMR offers radiation-free imaging for atrial flutter and fibrillation ablation.
• It aids in identifying cardiac substrates and assessing procedural outcomes.

Purpose of the Study:

• To provide a primer for radiologists on the utility of CMR in EP ablation.
• To highlight CMR's role in pre-procedural planning, intra-procedural guidance, and post-procedural evaluation.
• To emphasize the benefits of CMR in reducing radiation exposure and occupational risks.

Main Methods:

• Utilizing CMR for comprehensive cardiac anatomy assessment.
• Employing late gadolinium enhancement and T2-weighted sequences for tissue characterization (scars, edema).
• Leveraging intra-procedural CMR for real-time catheter tracking and anatomical visualization.

Main Results:

• CMR enables detailed anatomical assessment and tissue characterization.
• Real-time imaging facilitates precise catheter navigation during ablation.
• Post-procedural imaging with edema-sensitive sequences helps evaluate accuracy and prevent complications.

Conclusions:

• CMR is a valuable tool for guiding atrial flutter and fibrillation ablation procedures.
• It enhances safety by minimizing radiation exposure for patients and operators.
• CMR integration improves procedural planning, execution, and post-ablation assessment.