Unipolar Endocardial Voltage Mapping in the Right Ventricle: Optimal Cutoff Values Correcting for Computed Tomography-Derived Epicardial Fat Thickness and Their Clinical Value for Substrate Delineation [Original Article]

Conclusions— For identification of epicardial right ventricular scar, an endocardial UV cutoff value of 3.9 mV is more accurate than previously reported cutoff values. Although the majority of epicardial abnormal electrograms are associated with transmural scar with low endocardial BV, the additional use of endocardial UV at normal BV sites improves the diagnostic accuracy resulting in identification of all epicardial abnormal electrograms at sites with <1.0 mm fat.
Source: Circulation: Arrhythmia and Electrophysiology - Category: Cardiology Authors: Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Electrophysiology, Computerized Tomography (CT) Original Article Source Type: research