Key result
Late iodine-enhanced multidetector CT enables high-resolution subendocardial scar imaging to guide successful VT ablation.
Why the study?
Scar delineation with late gadolinium-enhanced MRI is limited by poor imaging quality and contraindications in most patients with ICDs, necessitating alternative imaging methods for VT ablation guidance.
Case Report (n=1)
No
May support CT scar mapping for VT ablation; hypothesis-generating and requires prospective validation.
Scar delineation with late gadolinium-enhanced MRI can direct VT substrate mapping and ablation, but imaging is poor and relatively contraindicated in the majority of patients with ICDs. We present a case of scar definition using late iodine-enhanced multidetector CT in a patient with ischemic cardiomyopathy and multiple ICD shocks for VT. CT images were acquired using a novel intracoronary contrast delivery protocol which provided high-resolution subendocardial scar visualization. The segmented scar images were subsequently imported into an electroanatomic mapping platform to guide successful VT ablation.
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Crean et al. (2012) conducted a case report in Ischemic cardiomyopathy and ventricular tachycardia (n=1). Late iodine-enhanced multidetector CT with novel intracoronary contrast delivery protocol was evaluated on Subendocardial scar visualization and successful VT ablation. A novel late iodine-enhanced multidetector CT protocol provided high-resolution subendocardial scar visualization to successfully guide ventricular tachycardia catheter ablation.
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