JACC. Cardiovascular imaging
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JACC Cardiovasc Imaging · Sep 2010
ReviewAnatomy of right atrial structures by real-time 3D transesophageal echocardiography.
The rapid development of catheter ablation techniques for atrial arrhythmias has triggered a renewed interest in the anatomy of the right atrium. In particular, some atrial arrhythmias such as focal atrial arrhythmias or atrial flutter have been linked to the anatomic architecture of specific structures such as the crista terminalis or cavotricuspid isthmus. ⋯ This review describes a step-by-step approach for acquisition and processing of RT 3D TEE images of right atrial structures of relevance to electrophysiologists. For anatomical correlations of RT 3D TEE images, selected images of right atrial structures were matched to anatomical specimens.
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JACC Cardiovasc Imaging · Jul 2010
ReviewEchocardiographic evaluation of patent foramen ovale prior to device closure.
High-quality imaging of the atrial septum has never been so relevant to the adult cardiologist. This article focuses on the role of echocardiography in the evaluation of patent foramen ovale for closure. It provides a systematic and comprehensive approach to transesophageal echocardiographic study in such a patient. The salient information required for planning the device and equipment needed for the closure procedure are discussed.
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JACC Cardiovasc Imaging · Jun 2010
Comparative StudyRV electrical activation in heart failure during right, left, and biventricular pacing.
To compare right ventricular (RV) activation during intrinsic conduction or pacing in heart failure (HF) patients. ⋯ In HF patients without RV dysfunction treated with CRT, normal RV free wall activation in intrinsic rhythm indicated normal right bundle branch-mediated depolarization. However, the RV was vulnerable to the development of activation delays during RV pacing, whether alone or with CRT-BiV. These were avoided by CRT-LV in patients with normal atrioventricular conduction.