首页> 外文会议>Annual International Conference of the IEEE Engineering in Medicine and Biology Society >Towards Detecting Surgical Clips in 3D Ultrasound for Target Localization in Radiation Therapy: a Study on Tissue Phantoms
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Towards Detecting Surgical Clips in 3D Ultrasound for Target Localization in Radiation Therapy: a Study on Tissue Phantoms

机译:在放射治疗中检测3D超声中的手术夹,靶向疗法:组织幽灵研究

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A study is performed to measure the visibility of small surgical clips in 3D ultrasound volumes of a phantom as the first step towards using such clips as fiducial markers in radiation therapy. Visibility is calculated as the contrast to noise ratio of the echo from the clip to the background. The appearance of a resonance tail is also calculated using a moment analysis. Contrast is found to be high and mostly independent of material and size of the clip. All clips are visible, but the length of the tail is found to be dependent on clip orientation to the ultrasound beam. The consistent visibility of the clips suggests they are suitable as fiducial markers in ultrasound and the dependency of the resonance tail on orientation provides an opportunity to distinguish clips from other specular reflectors.
机译:进行研究以测量3D超声体积的小外科夹子的可见性,作为使用这种夹子作为放射治疗中的基准标记的第一步。可见性计算为从剪辑到背景的回波的噪声比对比。共振尾的外观也使用时刻分析计算。发现对比度是高且主要独立于夹子的材料和大小。所有夹子都是可见的,但发现尾部的长度取决于夹子方向到超声波梁。夹子的一致性可见性表明它们适合于超声中的基准标记,并且谐振尾对取向的依赖性提供了区分夹子与其他镜面反射器的机会。

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