搜索结果: 1-12 共查到“生物医学工程 ablation”相关记录12条 . 查询时间(0.062 秒)
Atrial fibrillation ablation in patients with heart failure review
Atrial Fibrillation Ablation Heart Failure
2013/2/19
Atrial fibrillation and heart failure often coexist in patients with advanced heart failure symptoms. The result, in addition to a significant impact on quality of life, is an increase in the risk of ...
In situ Observation of Biological Tissue in Laser Ablation Using Optical Coherence Tomography
laser ablation in situ observation of biological tissue surface optical coherence tomography ablation rate
2009/6/9
When conducting laser ablation of biological tissue, a tomography of the tissue surface is necessary to measure the crater shape and crater depth, and observe damage to the surrounding tissue. In thi...
Simulation of Soft Tissue Ablation for a VR Simulator
ablation FEM-based soft tissue model maximum shearing stress hypothesis
2009/6/9
In surgery, failure of ablation is fatal to patients, and the operation is difficult for residents to learn. Our study aims to provide a VR-based training environment for ablation. This paper presents...
Effect of variable heat transfer coefficient on tissue temperature next to a large vessel during radiofrequency tumor ablation
heat transfer coefficient tissue temperature radiofrequency tumor ablation
2010/2/25
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...
RF tumor ablation with internally cooled electrodes and saline infusion: what is the optimal location of the saline infusion?
RF tumor saline infusion cooled electrodes
2010/2/25
The best-fit least square functions were always obtained with quadratic curves where volume and diameters of coagulation were maximum for a PD of 2 mm. A thirty per cent increase in volume coagulation...
Theoretical modeling for radiofrequency ablation: state-of-the-art and challenges for the future
radiofrequency ablation state-of-the-art and challenges the future
2010/2/26
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 ...
Antenna design for microwave hepatic ablation using an axisymmetric electromagnetic model
Antenna design microwave hepatic ablation an axisymmetric electromagnetic model
2010/2/26
Background
An axisymmetric finite element method (FEM) model was employed to demonstrate important techniques used in the design of antennas for hepatic microwave ablation (MWA). To effectively treat...
Automatic control of finite element models for temperature-controlled radiofrequency ablation
finite element models temperature-controlled radiofrequency ablation
2010/2/26
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...
Influence of electrical and thermal properties on RF ablation of breast cancer: is the tumour preferentially heated?
electrical and thermal properties RF ablation of breast cancer the tumour
2010/2/26
Both the computer model and the in vitro study confirmed that preferential heating of the tumour during RFA exists in breast tissue. However, the observed preferential heating in the in vitro studies ...
Structural and magnetic properties of NiZn and Zn ferrite thin films obtained by laser ablation Deposition
Structural and magnetic properties NiZn and Zn ferrite thin films laser ablation Deposition
2009/12/28
Structural and magnetic properties of NiZn and Zn ferrite thin films obtained by laser ablation Deposition.
Thermal modeling of lesion growth with radiofrequency ablation devices
Thermal modeling of lesion growth radiofrequency ablation devices
2010/3/1
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...
Finite Element Analysis of Hepatic Radiofrequency Ablation Probes using Temperature-Dependent Electrical Conductivity
Hepatic Radiofrequency Ablation Temperature-Dependent Electrical Conductivity
2010/3/1
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...