Myocardial Substrate Characterization by CMR T
T(1) mapping
myocardial fibrosis
nonischemic cardiomyopathy
unipolar voltage
ventricular tachycardia
Journal
JACC. Clinical electrophysiology
ISSN: 2405-5018
Titre abrégé: JACC Clin Electrophysiol
Pays: United States
ID NLM: 101656995
Informations de publication
Date de publication:
07 2021
07 2021
Historique:
received:
06
05
2020
revised:
15
09
2020
accepted:
01
10
2020
pubmed:
1
2
2021
medline:
26
10
2021
entrez:
31
1
2021
Statut:
ppublish
Résumé
The goal of this study was to characterize the relationship between DF, the electroanatomic mapping (EAM) substrate, and outcomes of catheter ablation of VT in NICM. A substantial proportion of patients with nonischemic dilated cardiomyopathy (NICM) and ventricular tachycardia (VT) do not have scar detectable by cardiac magnetic resonance late gadolinium enhancement (LGE) imaging. In these patients, the significance of diffuse fibrosis (DF) detected with T This study included 51 patients with NICM and VT undergoing catheter ablation (median age 55 years; 77% male subjects) who had no evidence of LGE on pre-procedural cardiac magnetic resonance. Post-contrast T Bipolar LVAs were present in 22 (43%) patients (median extent 15 cm In patients with NICM and no evidence of LGE undergoing catheter ablation of VT, DF estimated by using post-contrast T
Sections du résumé
OBJECTIVES
The goal of this study was to characterize the relationship between DF, the electroanatomic mapping (EAM) substrate, and outcomes of catheter ablation of VT in NICM.
BACKGROUND
A substantial proportion of patients with nonischemic dilated cardiomyopathy (NICM) and ventricular tachycardia (VT) do not have scar detectable by cardiac magnetic resonance late gadolinium enhancement (LGE) imaging. In these patients, the significance of diffuse fibrosis (DF) detected with T
METHODS
This study included 51 patients with NICM and VT undergoing catheter ablation (median age 55 years; 77% male subjects) who had no evidence of LGE on pre-procedural cardiac magnetic resonance. Post-contrast T
RESULTS
Bipolar LVAs were present in 22 (43%) patients (median extent 15 cm
CONCLUSIONS
In patients with NICM and no evidence of LGE undergoing catheter ablation of VT, DF estimated by using post-contrast T
Identifiants
pubmed: 33516709
pii: S2405-500X(20)30983-X
doi: 10.1016/j.jacep.2020.10.002
pii:
doi:
Substances chimiques
Contrast Media
0
Gadolinium
AU0V1LM3JT
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
831-840Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2021 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Funding Support And Author Disclosures This study was partially supported by the Winkelman Family Fund in Cardiovascular Innovation. The authors have reported that they have no relationships relevant to the contents of this paper to disclose.