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New imaging technologies to characterize arrhythmic substrate.


The cornerstone of the new imaging technologies to treat complex arrhythmias is the electroanatomic (EAM) mapping. It is based on tissue characterization and in particular on determination of low potential region and dense scar definition. Recently, the identification of fractionated isolated late potentials increased the specificity of the information derived from EAM. In addition, non-invasive tools and their integration with EAM, such as cardiac magnetic resonance imaging and computed tomography scanning, have been shown to be helpful to characterize the arrhythmic substrate and to guide the mapping and the ablation. Finally, intracardiac echocardiography, known to be useful for several practical uses in the setting of electrophysiological procedures, it has been also demonstrated to provide important informations about the anatomical substrate and may have potential to identify areas of scarred myocardium.


Credits: Antonio Dello Russo, MD, PhD; Sergio Conti, MD; Ghaliah Al-Mohani, MD, Phd; Michela Casella, MD, PhD; Francesca Pizzamiglio, MD; Corrado Carbucicchio, MD; Stefania Riva, MD; Gaetano Fassini, MD; Massimo Moltrasio, MD; Fabrizio Tundo, MD, PhD; Martina Zucchetti, MD; Benedetta Majocchi, MD; Eleonora Russo, MD; Vittoria Marino, MD; Maria Antonietta Dessanai MD; Fabrizio Bologna, MD; Luigi Di Biase, MD, PhD; Andrea Natale, MD; Claudio Tondo , MD, PhD.

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