Are wall thickness channels defined by computed tomography predictive of isthmuses of postinfarction ventricular tachycardia?

Takigawa, Masateru; Duchâteau, Josselin; Sacher, Frédéric; Martin, Ruairidh; Vlachos, Konstantinos; Kitamura, Τakeshi; Sermesant, Maxime; Cedilnik, Nicolas; Cheniti, Ghassen; Frontera, Antonio; Thompson, Nathaniel; Martin, C; Massoullié, Grégoire; Bourier, Félix; Lam, Anna; Wolf, Michael; Escande, William; André, Clémentine; Pambrun, Thomas; Denis, Arnaud; Derval, Nicolas; Hocini, Mélèze; Haı̈ssaguerre, Michel; Cochet, Hubert; Jaı̈s, Pierre

doi:10.1016/j.hrthm.2019.06.012

Cited by 56 publications

(34 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Imaging is a useful tool in detecting the arrhythmia substrate in advance of the procedure. Both contrast-enhanced cardiac MRI and computed tomography are known to depict ventricular arrhythmia substrates ( 3 , 4 ). However, neither imaging was obtained just before the procedure owing to the MRI noncompatibility of the ICD system and unavailability of software such as the Music system ( 4 ).…”

Section: Discussionmentioning

confidence: 99%

Successful Substrate Ablation for Ventricular Fibrillation in a Patient With Nonischemic Cardiomyopathy

et al. 2021

Self Cite

View full text Add to dashboard Cite

A 58-year-old woman with nonischemic cardiomyopathy underwent an ablation for refractory ventricular fibrillation (VF). In addition to elimination of the premature ventricular contraction triggering VF, substrate ablation entailed elimination of dormant Purkinje potentials, which were unmasked in regions where local pacing revealed a narrow QRS with stimulus QRS latency. VF trigger and abnormal Purkinje ablation completely eliminated the refractory VF. ( Level of Difficulty: Intermediate. )

show abstract

Section: Discussionmentioning

confidence: 99%

Successful Substrate Ablation for Ventricular Fibrillation in a Patient With Nonischemic Cardiomyopathy

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…A good correlation between these channels, defined as MDCT-detected myocardial ridges, and VT isthmuses has been described. 51 Our group recently reported that MDCT accurately identifies conducting channels in ischemic patients with transmural scars, but when compared with LGE-CMR, the myocardial wall thickness assessment using MDCT fails to detect a significant proportion of arrhythmogenic substrates in patients with subendocardial ischemic scars, 52 as Figure 7 shows. MDCT, however, represents a valuable alternative for imaging integration among patients in whom CMR is of suboptimal quality (i.e., ICD carriers), or for whom CMR is contraindicated or unavailable.…”

Section: F I G U R Ementioning

confidence: 99%

The role of imaging in catheter ablation of ventricular arrhythmias

Berruezo

Penela

Jáuregui

et al. 2021

Pacing Clinical Electrophis

View full text Add to dashboard Cite

Late gadolinium enhancement cardiac magnetic resonance (LGE‐CMR) and multidetector cardiac computed tomography (MDCT) have emerged as novel, fascinating imaging tools for arrhythmogenic substrate identification and characterization. The role of these techniques for aiding and guiding the catheter ablation of ventricular tachycardia, either as a complement or a surrogate of the electroanatomic map, has been rising in recent years. Integrating pixel signal intensity maps or wall thickness maps delivered from LGE‐CMR or MDCT, respectively, into the navigation system has become a cornerstone for VT ablation procedures in a few centers of excellence around the world. The pre‐procedure scar characterization offers some advantages, helping decide for the best procedure planning and approach; complete substrate identification and characterization, helping to focus electroanatomical mapping in regions of interest and also has a positive impact in procedure efficiency and outcomes. In the present article, we perform a review of the most practical aspects for using LGE‐CMR or MDCT when a VT ablation procedure is planned, from the image acquisition to the integration into the navigation system, analyzing the current role of the LGE‐CMR and MDCT for arrhythmogenic substrate characterization as well as for guiding VT ablation.

show abstract

“…High-resolution (0.625 × 0.5 × 0.5 mm), dose modulated, cardiac-gated computed tomography (CT) scans (Revolution CT; GE Healthcare, Chicago, IL) were obtained to identify potential arrhythmogenic substrate, defined as wall thinning <5 mm ( Supplemental Figures S1–S3 ). 14 Data from other imaging modalities including cardiac magnetic resonance imaging (MRI), nuclear sestamibi, and prior voltage mapping were also integrated into a comprehensive assessment of LV substrate, and final target volumes were contoured onto the cardiac CT and then transferred onto the radiation simulation CT per protocol (Graphical Abstract 1, middle left panel). Efforts were made to integrate target regions for VTs exiting from a common central scar to create a continuous lesion, anchored to nonconducting structures when feasible.…”

Section: Sabr Therapy Planningmentioning

confidence: 99%

Computational ECG mapping and respiratory gating to optimize stereotactic ablative radiotherapy workflow for refractory ventricular tachycardia

Atwood

Bruggeman

et al. 2021

Heart Rhythm O2

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

Are wall thickness channels defined by computed tomography predictive of isthmuses of postinfarction ventricular tachycardia?

Cited by 56 publications

References 22 publications

Successful Substrate Ablation for Ventricular Fibrillation in a Patient With Nonischemic Cardiomyopathy

Successful Substrate Ablation for Ventricular Fibrillation in a Patient With Nonischemic Cardiomyopathy

The role of imaging in catheter ablation of ventricular arrhythmias

Computational ECG mapping and respiratory gating to optimize stereotactic ablative radiotherapy workflow for refractory ventricular tachycardia

Contact Info

Product

Resources

About