Authors
Hiroshi Ashikaga, Hermenegild Arevalo, Fijoy Vadakkumpadan, Robert C Blake III, Jason D Bayer, Saman Nazarian, M Muz Zviman, Harikrishna Tandri, Ronald D Berger, Hugh Calkins, Daniel A Herzka, Natalia A Trayanova, Henry R Halperin
Publication date
2013/8/1
Journal
Heart Rhythm
Volume
10
Issue
8
Pages
1109-1116
Publisher
Elsevier
Description
Background
Previous studies suggest that magnetic resonance imaging with late gadolinium enhancement (LGE) may identify slowly conducting tissues in scar-related ventricular tachycardia (VT).
Objective
To test the feasibility of image-based simulation based on LGE to estimate ablation targets in VT.
Methods
We conducted a retrospective study in 13 patients who had preablation magnetic resonance imaging for scar-related VT ablation. We used image-based simulation to induce VT and estimate target regions according to the simulated VT circuit. The estimated target regions were coregistered with the LGE scar map and the ablation sites from the electroanatomical map in the standard ablation approach.
Results
In image-based simulation, VT was inducible in 12 (92.3%) patients. All VTs showed macroreentrant propagation patterns, and the narrowest width of estimated target region that an ablation line should …
Scholar articles
H Ashikaga, H Arevalo, F Vadakkumpadan… - Heart Rhythm, 2013