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首页> 外文会议>Physics of Medical Imaging pt.3; Progress in Biomedical Optics and Imaging; vol.8 no.29; Proceedings of SPIE-The International Society for Optical Engineering; vol.6510 pt.3 >Virtual Adaptation of Physical Phantoms to Datasets Derived from Clinical Tomographic Examinations
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Virtual Adaptation of Physical Phantoms to Datasets Derived from Clinical Tomographic Examinations

机译：物理幻象对来自临床断层摄影检查的数据集的虚拟适应

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摘要

Thoracic radiography was simulated making use of a virtual pediatric model created from tomographic data (voxelphantom) of a child eight weeks old. The dataset was scaled down to fit the dimensions of a premature newborn. The simulation allows a quantitative and spatially resolved analysis of the x-ray image generation. The transmission behavior of different anatomical regions present in the voxelphantom was compared to the output of the simulation of a step-like phantom made from aluminum and PMMA. The step like structure of the simulated model can be easily built and statements about its x-ray related behavior can be directly validated by means of experiments. A thin contrast plate was placed on each step to make the determination of dependences e.g. between the applied radiation energy and the contrast to noise ratio possible.
机译：胸部放射线照相是根据一个虚拟的儿科模型进行模拟的，该模型是根据一个八周大的儿童的断层扫描数据（voxelphantom）创建的。数据集按比例缩小以适合早产新生儿的尺寸。该模拟允许对X射线图像生成进行定量和空间分辨的分析。将存在于体素幻影中的不同解剖区域的传输行为与由铝和PMMA制成的阶梯状体模的模拟输出进行了比较。可以轻松地构建模拟模型的类似步骤的结构，并且可以通过实验直接验证有关其X射线相关行为的陈述。在每个步骤上都放置一块薄的对比板，以便确定相关性，例如在所施加的辐射能量与噪声比之间可能会有所不同。

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