Electro-Anatomic Mapping and Radio-Frequency Ablation of Porcine Left Atria and Atrio-Ventricular Nodes using Magnetic Resonance Catheter Tracking Short Title: Schmidt et al., MR-Tracked Left Atrial Mapping and RF Ablation
نویسندگان
چکیده
From *Radiology, Brigham and Women’s Hospital, Boston, Massachusetts, †Cardiology, Massachusetts General Hospital, ‡ONI Medical Systems, Inc, Wilmington, Massachusetts, **Cardiology, University of Miami, Miami, Florida , ‡GE Global Research, Niskayuna, New York, §GE Healthcare Applied Science Laboratory, Bethesda, Maryland, St. Jude Medical, Minnetonka, Minnesota, and ‡‡Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio.
منابع مشابه
Electroanatomic mapping and radiofrequency ablation of porcine left atria and atrioventricular nodes using magnetic resonance catheter tracking.
BACKGROUND The MRI-compatible electrophysiology system previously used for MR-guided left ventricular electroanatomic mapping was enhanced with improved MR tracking, an MR-compatible radiofrequency ablation system and higher-resolution imaging sequences to enable mapping, ablation, and ablation monitoring in smaller cardiac structures. MR-tracked navigation was performed to the left atrium (LA)...
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BACKGROUND Targets for radiofrequency (RF) ablation of atrial fibrillation, atrial flutter, and nonidiopathic ventricular tachycardia are increasingly being selected on the basis of anatomic considerations. Because fluoroscopy provides only limited information about the relationship between catheter positions and cardiac structures and is associated with radiation risk, other approaches to mapp...
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Atrial fibrillation (AF), the most common arrhythmia, has been identified as a major cause of stroke. The current standard in interventional treatment of AF is the pulmonary vein isolation (PVI). PVI is guided by fluoroscopy or non-fluoroscopic electro-anatomic mapping systems (EAMS). Either classic point-to-point radio-frequency (RF) catheter ablation or so-called single-shot-devices like cryo...
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BACKGROUND We treated paroxysmal recurrent atrial fibrillation (AF) with radiofrequency (RF) catheter ablation by creating long linear lesions in the atria. To achieve line continuity, a 3D electroanatomic nonfluoroscopic mapping system was used. METHODS AND RESULTS In 27 patients with recurrent AF, a catheter incorporating a passive magnetic field sensor was navigated in both atria to constr...
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Pre-procedure X-ray computed tomography (CT) and magnetic resonance imaging (MRI) angiography are commonly used to delineate the complex and variable relationship of the left atrium, pulmonary veins, and surrounding structures. 3D CT and MR angiography are routinely incorporated into electroanatomic mapping systems to guide ablation lesion placement in the context of patient specific anatomy. P...
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