Key result
High-resolution 3D ce-CMR identified border zone channels matching 74% of the critical isthmus of clinical VTs and showed scar area decreases from endocardium to epicardium (P<0.01).
Why the study?
Can 3D high-resolution 3T ce-CMR identify and characterize the 3D architecture of scar and conducting channels in patients with healed myocardial infarction and VT?
Population
21 patients with healed myocardial infarction and ventricular tachycardia (VT)
Comparison
3D high-resolution 3T contrast enhanced-cardiac… vs Electroanatomic maps (CARTO-guided)
Design
Cross-sectional
Authors
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Supports 3D ce-CMR for post-MI scar channel characterization; leaves open impact on VT ablation outcomes.
Observational (n=21)
Can 3D high-resolution 3T ce-CMR identify and characterize the 3D architecture of scar and conducting channels in patients with healed myocardial infarction and VT?
p-value: p=<0.01
High-resolution 3D ce-CMR can visualize the 3D structure of border zone channels within the myocardial wall and identify a majority of critical isthmuses for clinical VTs, potentially aiding in ablation guidance.
Fernández‐Armenta et al. (2013) conducted an observational in Healed myocardial infarction and ventricular tachycardia (n=21). 3D high-resolution 3T contrast enhanced-cardiac magnetic resonance (ce-CMR) was evaluated on Scar area distribution and identification of border zone channels (p=<0.01). High-resolution 3D ce-CMR identified border zone channels matching 74% of the critical isthmus of clinical VTs and showed scar area decreases from endocardium to epicardium (P<0.01).
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