Implications of bipolar voltage mapping and magnetic resonance imaging resolution in biventricular scar characterization after myocardial infarction

Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology
Mariña López-YuntaDavid Filgueiras-Rama

Abstract

We aimed to study the differences in biventricular scar characterization using bipolar voltage mapping compared with state-of-the-art in vivo delayed gadolinium-enhanced cardiac magnetic resonance (LGE-CMR) imaging and ex vivo T1 mapping. Ten pigs with established myocardial infarction (MI) underwent in vivo scar characterization using LGE-CMR imaging and high-density voltage mapping of both ventricles using a 3.5-mm tip catheter. Ex vivo post-contrast T1 mapping provided a high-resolution reference. Voltage maps were registered onto the left and right ventricular (LV and RV) endocardium, and epicardium of CMR-based geometries to compare voltage-derived scars with surface-projected 3D scars. Voltage-derived scar tissue of the LV endocardium and the epicardium resembled surface projections of 3D in vivo and ex vivo CMR-derived scars using 1-mm of surface projection distance. The thinner wall of the RV was especially sensitive to lower resolution in vivo LGE-CMR images, in which differences between normalized low bipolar voltage areas and CMR-derived scar areas did not decrease below a median of 8.84% [interquartile range (IQR) (3.58, 12.70%)]. Overall, voltage-derived scars and surface scar projections from in vivo LGE-CMR seque...Continue Reading

References

Feb 20, 1996·Proceedings of the National Academy of Sciences of the United States of America·J A Sethian
Jul 6, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Daniel R MessroghliJohn P Ridgway
Dec 21, 2004·Journal of the American College of Cardiology·Luciano C AmadoJoão A C Lima
Dec 3, 2014·Journal of the American College of Cardiology·Rodrigo Fernández-JiménezBorja Ibáñez
Aug 1, 2015·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Cory M TschabrunnElad Anter
Sep 28, 2015·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Pasquale Santangeli, Francis E Marchlinski
May 11, 2016·Nature Communications·Hermenegild J ArevaloNatalia A Trayanova
Jun 17, 2016·Circulation. Arrhythmia and Electrophysiology·Cory M TschabrunnElad Anter
Aug 2, 2017·Heart Rhythm : the Official Journal of the Heart Rhythm Society·David AndreuAntonio Berruezo
Oct 1, 2015·JACC. Clinical Electrophysiology·Mark E Josephson, Elad Anter

❮ Previous
Next ❯

Citations

Jun 21, 2019·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Rahul K MukherjeeMark D O'Neill

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cardiac Conduction System

The cardiac conduction system is a specialized tract of myocardial cells responsible for maintaining normal cardiac rhythm. Discover the latest research on the cardiac conduction system here.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.

Bipolar Disorder

Bipolar disorder is characterized by manic and/or depressive episodes and associated with uncommon shifts in mood, activity levels, and energy. Discover the latest research this illness here.

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Related Papers

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
Nirat BeoharFlorence H Sheehan
Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance
Milind Y DesaiDavid A Bluemke
Heart Rhythm : the Official Journal of the Heart Rhythm Society
Roy BeinartSaman Nazarian
© 2022 Meta ULC. All rights reserved