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A methodology to analyze treatment zone geometry and variability of percutaneous thermal ablation

机译:分析治疗区几何形状和经皮热消融变异性的方法

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A major challenge for image guided tumor ablation is the high treatment variability due to heterogeneous tissue characteristics and thermal sinks. In this work, we present a methodology to analyze the geometry of the treatment zones and treatment zone variability. Our first contribution is an applicator centric co-ordinate system which enables us to compare treatment zones and vendor specifications across patients. Our second contribution is the analysis of the shape of the ablation zone using applicator centric longitudinal 2D cross sections. We present initial results of applying this methodology to analyze the geometry and variability in synthetic examples like ellipsoid, sphere and real microwave ablation zones in lung and liver.
机译:图像引导的肿瘤消融的主要挑战是由于异质性组织特征和散热片引起的高治疗变异性。在这项工作中,我们提出了一种方法来分析治疗区的几何形状和治疗区的变异性。我们的第一个贡献是以涂药器为中心的坐标系统,使我们能够比较患者的治疗区域和供应商规格。我们的第二个贡献是使用涂药器中心纵向2D横截面分析消融区的形状。我们提供了使用这种方法分析合成示例(如椭球,球体和肺和肝中的实际微波消融区)的几何形状和变异性的初步结果。

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