نتایج جستجو برای: ablation techniques
تعداد نتایج: 674324 فیلتر نتایج به سال:
BACKGROUND Many women have undergone both resectoscopic and nonresectoscopic (or global) endometrial ablation (EA) during the past 20 years. These women are now approaching their sixth and seventh decades of life, a time frame in which endometrial carcinoma (EC) is most frequently diagnosed. DATABASE In several reports, surgeons have expressed concern that endometrial ablation may leave a seq...
OBJECTIVE To assess the sizes and configurations of thermal zones after overlapping ablations using a coaxial radiofrequency (RF) electrode and multiple cannulae in ex-vivo bovine liver. MATERIALS AND METHODS For ablation procedures, a coaxial RF electrode and introducer set was used. Employing real-time ultrasound guidance and overlapping techniques in explanted, fresh bovine liver, we creat...
Background This study compared the realtime monitoring effects of conventional ultrasound and contrast-enhanced ultrasound (CEUS) on evaluating radio frequency ablation (RFA) in a living swine liver model. Methodology Liver RFA was performed on 10 young swine. Conventional ultrasound and CEUS were performed immediately. After the animals were sacrificed, ablation lesions were removed to histo...
Introduction: Today electrophysiology studies and ablation have been developed due to increasing arrhythmias disorder of heart. In these diagnostic – treatments methods, the use of fluoroscopy can be causes patient radiation dose, therefore evaluation of patient's absorbed dose is necessary to protection of the radiation. The aim of this study was to evaluate the absorbed dose in patients under...
Atrial fibrillation (AF) is the most common cardiac dysrhythmia,1with over 2.6 million Americans affected. Partly due to the high risk of stroke in these patients, AF is associated with significant morbidity and mortality.2 The number of individuals affected with AF is expected to rise 6-fold over the next 40 years. Catheter-based ablation may offer a more effective means of treating AF than co...
Hepatic resection and transplantation are the only potentially curative options for cholangiocarcinoma.1,2 Unfortunately, only approximately 30% of patients are considered surgical candidates at the time of diagnosis and the overall 5-year survival rates range from 33 to 65%.3 Given the dismal outcomes of systemic chemotherapy, other therapeutic options may have a potential role for patients wi...
BACKGROUND Since its introduction in 1953, lone atrial fibrillation (LAF) has not been defined with any consistency, resulting in an enormous variation in the way the term is used. Inherent to this, results from studies vary considerably. Many predisposing factors and pathogenic influences have been discovered over the past years, which raise the question if the term LAF should still be used an...
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