Background Right ventricular (RV) dilatation is a key imaging criterion of the 2010 modified task force criteria for the diagnosis of arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D), which makes accurate and reproducible volumetric anaylsis essential. We wanted to evaluate the effect of using new thresholding software in volume analysis compared to standard manual contouring ...

High-frequency ultrasound biomicroscopy (UBM) has recently emerged as a high-resolution means of phenotyping genetically altered mice and has great potential to evaluate the cardiac morphology and hemodynamics of mouse mutants. However, there is no standard procedure of in vivo transthoracic cardiac imaging using UBM to comprehensively phenotype the adult mice. In this paper, the characteristic...

OBJECTIVES We examined the relationship among biventricular hemodynamics, pulmonary regurgitant fraction (PRF), right ventricular outflow tract (RVOT) aneurysm or akinesia, and baseline and surgical characteristics in adults with repaired tetralogy of Fallot (rTOF). BACKGROUND The precise relationship of pulmonary regurgitation with biventricular hemodynamics has been hampered by limitations of...

Background There are several evidences that right ventricular (RV) volume is important for the patients underwent surgery for tetralogy-of -Fallot, However, there is lack of evidence of RV volume after tricuspid valve surgery. Our aim was to evaluate right ventricular (RV) function using cardiac magnetic resonance imaging (CMRI) in patients who underwent tricuspid valve surgery for identifying ...

BACKGROUND Idiopathic right ventricular arrhythmias (IRVA) are responsive to medical and ablative treatment and have a benign prognosis. Arrhythmias caused by right ventricular dysplasia (ARVD) are refractory to treatment and may cause sudden death. It is difficult to distinguish between these two types of arrhythmia. OBJECTIVE To differentiate patients with IRVA and ARVD by a conventional el...