Related Experiment Video
Updated: Jul 6, 2026

Patient-specific Modeling of the Heart: Estimation of Ventricular Fiber Orientations
Published on: January 8, 2013
The Right Ventricular Moderator Band: From Leonardo da Vinci's Drawings to Current Cardiac Imaging
David González-Casal1, Damián Sánchez-Quintana2, Alejandro Jiménez Restrepo3,4
1Cardiology Department, Hospital Universitario QuirónSalud, European University of Madrid, Madrid, Spain.
Anatomy:
We aim to review the anatomy of the moderator band (MB) and the trabeculated right ventricle (RV).
Pathology:
We thoroughly describe the morphological variations of the MB and its spatial relationship with the right ventricular anterior papillary muscle, its muscular trabeculations, and the free wall.
Imaging Correlation:
We provide echocardiography, computed tomography, and magnetic resonance imaging to better understand histologic specimens of the MB, the trabeculated RV, and the right ventricular papillary muscles.
Treatment:
We provide examples of intracardiac echocardiography and transesophageal echocardiogram to guide safe and effective structural interventions in the RV, and mapping and ablation of ventricular arrhythmias arising from the MB.
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