It is time to revisit the theory of acute conduction block: efficacy of high-intensity focused ultrasound epicardial ablation.
نویسندگان
چکیده
منابع مشابه
Numerical Study for Optimizing Parameters of High-Intensity Focused Ultrasound-Induced Thermal Field during Liver Tumor Ablation: HIFU Simulator
Introduction High intensity focused ultrasound (HIFU) is considered a noninvasive and effective technique for tumor ablation. Frequency and acoustic power are the most effective parameters for temperature distribution and the extent of tissue damage. The aim of this study was to optimize the operating transducer parameters such as frequency and input power in order to acquire suitable temperatu...
متن کاملReply to Colli and Romero-Ferrer.
ing of electrical conduction across the ablation lines. With bipolar radiofrequency (RF) clamps, the PV cuff is physically clamped and burned repeatedly in order to achieve 'acute' conduction block. A question for further reflection is: are we achieving block at that moment because of local tissue trauma and inflammation resulting from simultaneous crushing and burning of the PV cuff and is tha...
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OBJECTIVES Clinical success of atrial fibrillation (AF) ablation depends on persistent blocking of electrical conduction across the ablation lines. Epicor high-intensity focused ultrasound (HIFU) ablation has been credited with a variable clinical efficacy. The aim of this work is to ascertain the electrophysiological (EP) efficacy of such lesions, by assessing pulmonary vein isolation (PVI) af...
متن کاملThree potential mechanisms for failure of high intensity focused ultrasound ablation in cardiac tissue.
BACKGROUND High intensity focused ultrasound (HIFU) has been introduced for treatment of cardiac arrhythmias because it offers the ability to create rapid tissue modification in confined volumes without directly contacting the myocardium. In spite of the benefits of HIFU, a number of limitations have been reported, which hindered its clinical adoption. METHODS AND RESULTS In this study, we us...
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Background: The rationale was to develop an ablation approach to destroy regions of tumor resistant to radiation and thus reduce the time required for whole tumor ablation, while improving overall tumor control after radiotherapy. Materials and Methods: The system is composed of a micro positron emission tomography (mPET), 7T magnetic resonance imaging (MRI), and a customized MRI-compatible foc...
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ورودعنوان ژورنال:
- European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery
دوره 43 2 شماره
صفحات -
تاریخ انتشار 2013