The understanding of atrial fibrillation (AF) evolved from a sole rhythm disturbance towards
the complex concept of a cardiomyopathy based on arrhythmia substrates. There is …

We aim to provide a critical appraisal of basic concepts underlying signal recording and
processing technologies applied for (i) atrial fibrillation (AF) mapping to unravel AF …

Objectives: This study sought to determine the impact of rate and direction on left atrial (LA)
substrate. Background: The extent to which substrate mapped in sinus rhythm varies …

Biophysical models of the atrium provide a physically constrained framework for describing
the current state of an atrium and allow predictions of how that atrium will respond to …

Objective: Local activation time (LAT) mapping of the atria is important for targeted treatment
of atrial arrhythmias, but current methods do not interpolate on the atrial manifold and …

Background: Pathological atrial fibrosis is a major contributor to sustained atrial fibrillation.
Currently, late gadolinium enhancement (LGE) scans provide the only noninvasive estimate …

Background Bipolar voltage is widely used to characterize the atrial substrate but has been
poorly validated, particularly during clinical tachycardias. Objective The purpose of this study …

Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia associated with
significant morbidity and mortality. Managing risk of stroke and AF burden are pillars of AF …

Background Optimal method for voltage assessment in AF remains unclear. Objectives This
study evaluated different methods for assessing atrial voltage and their accuracy in …

Objectives We investigated characteristics of left atrial conduction in patients with HCM,
paroxysmal AF and normal bipolar voltage. Background Patients with hypertrophic …