High mean entropy calculated from cardiac MRI texture analysis is associated with antitachycardia pacing failure

ConclusionsOur findings suggest lower scar heterogeneity (mean entropy) is associated with successful ATP, whereas higher scar heterogeneity is associated with more aggressive VAs unresponsive to ATP requiring shock therapy that may be due to inability of the paced wavefront to propagate through scar and terminate the VA circuit.

Source: Pacing and Clinical Electrophysiology : PACE - June 20, 2020 Category: Cardiology Authors: Justin Gould, Bradley Porter, Baldeep S. Sidhu, Simon Claridge, Zhong Chen, Benjamin J. Sieniewicz, Mark Elliott, Vishal Mehta, Fernando O. Campos, Martin J. Bishop, Caroline Mendonca Costa, Steven Niederer, Balaji Ganeshan, Reza Razavi, Ame Tags: DEVICES Source Type: research