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搜索结果: 1-13 共查到医学 Radiofrequency相关记录13条 . 查询时间(0.093 秒)
Aim. Atrial fibrillation (AFib) is a major clinical issue and its occurrence is the main problem after catheter ablation of atrial flutter. The long-term occurrence of AFib after common atrial flutter...
Background: Atrial fibrillation is a common arrhythmia in patients with rheumatic mitral and other valve diseases who are candidates for valve repair surgeries. Conversion of rhythm to sinus has posit...
It has been well - established that common atrial flutter is due to intraatrial macroreentry and its reentry circuit locates in the right atrium. This reentry circuit has been characterized to involve...
Radiofrequency (RF) coils, developed to resonate at 27.12 MHz, were evaluated for effectiveness in rewarming thermally unprotected extremities of 5 male subjects. Bare hands or bare feet were exposed ...
Biological Effects and Safety of Exposures to Radiofrequency Electromagnetic Fields from Mobile Communications.
For tumor ablation procedures typically lasting at least 5 min, this study shows that modeling the heat sink effect of large vessels by applying constant h as a boundary condition will yield precise r...
Patients with valvular heart disease and suffering atrial fibrillation of more than 12 months duration have a low probability of remaining in sinus rhythm after valve surgery alone. We performed intra...
Background/Objective: Radiofrequency ablation (RFA) is emerging as a new therapeutic technique for unresectable hepatic malignancies. We report our experience with the use of this method for the first...
Radiofrequency ablation is an interventional technique that in recent years has come to be employed in very different medical fields, such as the elimination of cardiac arrhythmias or the destruction ...
We present results of a temperature controlled 3-D FEM model of a RITA model 30 electrode. The control software effectively controlled applied voltage in the FEM model to obtain, and keep electrodes a...
The data demonstrate the size of thermal lesions is grossly overestimated when calculated using traditional temperature isocontours of 42°C and 47°C. The computational model results predicted lesion d...
The model, with previously determined parameter values, was successful in predicting major aspects of human thermoregulatory response to RF energy exposure over a wide frequency range, and at differen...
The data demonstrate that significant errors are generated when constant electrical conductivity is assumed in coupled electrical-heat transfer problems that operate at high temperatures. These errors...

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