Fast personalized electrophysiological models from computed tomography images for ventricular tachycardia ablation planning
Key result
Fast CT-based electrophysiological modeling successfully reproduces re-entrant VT activation patterns in minutes.
Why the study?
Does a fast personalized electrophysiological model from CT images accurately reproduce re-entrant VT activation patterns for ablation planning?
Population
Patient-specific virtual three-dimensional heart models obtained from computed tomography images for…
Comparison
Fast personalized electrophysiological modeling… vs Pre-operatively acquired electrophysiological data
Design
Other
Authors
Discussion
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Member takes
Implication
Enables rapid CT-based VT ablation planning; extends electrophysiological modeling validation to randomized human data.
Key Points
- To develop a fast, automated pipeline constructing patient-specific cardiac electrophysiological models from computed tomography images for pre-operative ventricular tachycardia ablation planning.
- Segmented patient-specific 3D heart geometries from CT images and localized myocardial scars via automated wall-thickness mapping.
- Modeled wavefront propagation using an Eikonal formulation with reduced velocities in scar areas and identified VT isthmuses using a vessel enhancement algorithm.
- Simulated virtual pacing with interactive onset points and directional conduction blocks to mimic tissue refractoriness.
- Completed personalized electrophysiological simulations within a few minutes following semi-automated initial image segmentation.
- Accurately reproduced clinically recorded re-entrant ventricular tachycardia activation patterns when compared with pre-operative electrophysiological mapping data.
Structured PICO
Does a fast personalized electrophysiological model from CT images accurately reproduce re-entrant VT activation patterns for ablation planning?
P
Population
Patient-specific virtual three-dimensional heart models obtained from computed tomography (CT) images for post-infarct ventricular tachycardia (VT) radiofrequency ablation planning
I
Intervention
Fast personalized electrophysiological modeling pipeline using an Eikonal model of wave front propagation and virtual pacing
C
Comparator
Pre-operatively acquired electrophysiological (EP) data
O
Outcome
Reproduction of recorded re-entrant VT activation patternssurrogate
A fast, personalized electrophysiological modeling pipeline from CT images can reproduce re-entrant VT activation patterns, potentially guiding pre-operative ablation planning.
Cite This Study
Cedilnik et al. (2018) studied post-infarct ventricular tachycardia. Personalized cardiac electrophysiology model from CT images was evaluated on Reproduction of recorded re-entrant VT activation patterns. A fast, personalized electrophysiological modeling pipeline from CT images enabled simulations in only a few minutes and successfully reproduced recorded re-entrant VT activation patterns.