Multimodality Imaging to Guide Ventricular Tachycardia Ablation in Patients with Non-ischaemic Cardiomyopathy
Ling Kuo1, Jackson J Liang2, Saman Nazarian2
1Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
Insights
Catheter ablation effectively treats ventricular tachycardia (VT) in non-ischaemic cardiomyopathy (NICM). Multimodal imaging enhances diagnosis and optimizes VT ablation strategies for better outcomes.
Area of Science:
- Cardiology
- Medical Imaging
- Electrophysiology
Background:
- Non-ischaemic cardiomyopathy (NICM) presents heterogeneous etiologies and ventricular tachycardia (VT) substrates.
- Long-term outcomes of VT ablation in NICM patients are influenced by this heterogeneity.
- Advances in identifying NICM causes and characterizing substrates are crucial.
Purpose of the Study:
- To review the role of multimodal imaging in characterizing NICM substrates.
- To discuss the application of imaging in planning VT ablation procedures.
- To explore image integration for optimizing VT ablation in NICM.
Main Methods:
- Literature review of studies on multimodal imaging in NICM and VT.
- Analysis of diagnostic capabilities of various imaging modalities.
- Synthesis of information on procedural planning and image integration techniques.
Main Results:
- Multimodal imaging aids in accurate diagnosis of NICM subtypes.
- Imaging provides detailed characterization of VT substrates.
- Integration of imaging improves VT ablation strategy and potentially outcomes.
Conclusions:
- Multimodal imaging is pivotal for understanding NICM and guiding VT ablation.
- Advanced imaging techniques enhance procedural planning and execution.
- Optimized ablation strategies using imaging can improve patient outcomes in NICM.
Abstract:
Catheter ablation is an effective treatment option for ventricular tachycardia (VT) in patients with non-ischaemic cardiomyopathy (NICM). The heterogeneous nature of NICM aetiologies and VT substrate in patients with NICM play a role in long-term ablation outcomes in this population. Over the past decades, more precise identification of NICM aetiologies and better characterisation of various substrates have been made. Application of multimodal imaging has greatly contributed to the accurate diagnosis of NICM subtypes and improved VT ablation strategies. This article summarises the current knowledge of multimodal imaging used in the characterisation of non-ischaemic NICM substrates, procedural planning and image integration for the optimisation of VT ablation.
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