title: High-resolution 3D scar imaging using a novel late iodine enhancement multidetector CT protocol to guide ventricular tachycardia catheter ablation.
abstract: 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.
authors.affiliation: Division of Cardiology, University Health Network, Toronto, Ontario, Canada.
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Crean
authors.forename: Danna A
authors.initials: DA
authors.lastname: Spears
authors.forename: Adrian M
authors.initials: AM
authors.lastname: Suszko
authors.forename: Vijay S
authors.initials: VS
authors.lastname: Chauhan
mesh_terms: D000368:Aged; D017115:Catheter Ablation; D002921:Cicatrix / Q000473:pathology; D006801:Humans; D007455:Iodine; D008297:Male; D061330:Multidetector Computed Tomography / Q000379:methods*; D009206:Myocardium / Q000473:pathology*; D017180:Tachycardia, Ventricular / Q000473:pathology* / Q000601:surgery*
chemical_list: D007455:Iodine