Scholarly Works - Journal articles
Journal article
Heart Rhythm O2
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August 2025
BACKGROUND: The recurrence of arrhythmia following catheter ablation of macro-reentrant atrial tachycardia (MRAT) in repaired tetralogy of Fallot (rTOF) is poorly understood. OBJECTIVE: To better describe the incidence, mechanisms, and predictors of recurr ...
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Journal article
Circ Res
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March 28, 2025
BACKGROUND: Arrhythmogenic cardiomyopathy (ACM) is one of the leading causes of sudden cardiac death in children, young adults, and athletes and is characterized by the fibro-fatty replacement of the myocardium, predominantly of the right ventricle. Sixty ...
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Journal article
Front Pediatr
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2024
BACKGROUND: In adolescents and adults with tetralogy of Fallot (TOF), right ventricle (RV) electromechanical dyssynchrony (EMD) due to right bundle branch block (RBBB) is associated with reduced exercise capacity and RV dysfunction. While the development o ...
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Journal article
Am J Cardiol
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July 1, 2022
Arrhythmias are the leading cause of morbidity and mortality in repaired tetralogy of Fallot (TOF), and over 20% of these patients will develop a sustained atrial arrhythmia during their lifetimes. Cardiac magnetic resonance imaging (cMRI) is frequently pe ...
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Journal article
Pediatr Cardiol
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January 2021
Impaired exercise following Fontan is a surrogate of morbidity. Single-center longitudinal data exist, but there is a lack of contemporary multi-center data. Ramp cycle ergometry was re-performed in consented participants who had originally participated in ...
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Journal article
Curr Cardiol Rep
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January 16, 2020
PURPOSE OF REVIEW: Pacing in pediatric and adult patients with congenital heart disease requires careful evaluation and thoughtful planning. Review of current guidelines with assessment of risk/benefit must be performed along with planning on a case-by-cas ...
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Journal article
JACC Clin Electrophysiol
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April 2018
OBJECTIVES: This study sought to characterize risk in children with Wolff-Parkinson-White (WPW) syndrome by comparing those who had experienced a life-threatening event (LTE) with a control population. BACKGROUND: Children with WPW syndrome are at risk of ...
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Journal article
Innovations (Phila)
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2018
Traditionally, pacing leads are placed transvenously, although smaller pediatric patients who require permanent pacemakers may benefit from delaying tranvenous lead placement until they are larger. Alternative, minimally invasive atrioventricular pacing op ...
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Journal article
Cardiol Young
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April 2016
BACKGROUND: Adults with high premature ventricular contraction burden can develop left ventricular dilation, dysfunction, and strain, consistent with a cardiomyopathy, which is reversible with radiofrequency ablation of the premature ventricular contractio ...
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Journal article
Magn Reson Med
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June 2005
In this experiment, Sprague-Dawley rats with elastase-induced emphysema were imaged using hyperpolarized (3)He MRI. Regional fractional ventilation r, the fraction of gas replaced with a single tidal breath, was calculated from a series of images in a wash ...
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Journal article
Radiol Clin North Am
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January 2005
Recent advances in HP MR imaging contrast agents have led to novel tests of pulmonary function. Many of these tests show promise in the clinical arena. ...
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Journal article
Magn Reson Med
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October 2004
Magnetic resonance imaging (MRI) with hyperpolarized 3-helium gas (HP 3He) offers the possibility of studying functional lung parameters such as the alveolar oxygen concentration and oxygen depletion rate. Until now, a double-acquisition technique has been ...
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Journal article
Acad Radiol
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October 2004
RATIONALE AND OBJECTIVES: The aim of this study was to establish a standardized procedure for the measurement of regional fractional ventilation in a healthy rat model as a baseline for further studies of pulmonary disorder models. MATERIALS AND METHODS: T ...
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Journal article
Magn Reson Med
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July 2004
Alveolar ventilation/perfusion ratio (VA/Q) is a key parameter in functional imaging of the lung. Herein, regional VA/Q was calculated from regional values of alveolar partial pressure of oxygen (PAO2) measured by hyperpolarized 3He gas MRI (HP 3He MRI). Y ...
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Journal article
Acad Radiol
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November 2003
RATIONALE AND OBJECTIVES: Atelectasis, the collapse of small airways, is a significant clinical problem. We use hyperpolarized (HP) 3He magnetic resonance imaging (MRI), or HP 3He MRI, to describe atelectasis in the normal Yorkshire pig, the pig with atele ...
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