Cardiac CT With Delayed Enhancement in the Characterization of Ventricular Tachycardia Structural Substrate: Relationship Between CT-Segmented Scar and Electro-Anatomic Mapping

Antonio Esposito, Anna Palmisano, Sofia Antunes, Giuseppe Maccabelli, Caterina Colantoni, Paola Maria Vittoria Rancoita, Francesca Baratto, Clelia Di Serio, Giovanna Rizzo, Francesco De Cobelli, Paolo Della Bella, Alessandro Del Maschio

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives This study sought to compare myocardial scars depicted by computed tomography (CT) with electrical features from electro-anatomic mapping (EAM), assessing the potential role of CT integration in ventricular tachycardia (VT) and radiofrequency catheter ablation (RFCA) procedures. Background Imaging-based characterization of VT myocardial substrate is required to plan EAM and, potentially, to guide RFCA. Methods Forty-two consecutive patients, 35 of whom had implantable cardioverter-defibrillator, all referred for VT RFCA, underwent pre-procedural CT including an angiographic and a 10-min delayed-enhancement scan. Segmental comparison between scars segmented from CT and low voltages (bipolar voltages
Original languageEnglish
Pages (from-to)822 - 832
Number of pages11
JournalJACC: Cardiovascular Imaging
Volume9
Issue number7
DOIs
Publication statusPublished - Jul 1 2016

Keywords

  • cardiac computed tomography
  • computed tomography delayed enhancement
  • electro-anatomic mapping
  • radiofrequency catheter ablation
  • ventricular tachycardia

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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