Very High Contrast and Very High Spatial Resolution 2-D, 2.5-D and 3-D Breast Tissue Visualization under X-ray Dark Field Imaging
Very High Contrast and Very High Spatial Resolution 2-D, 2.5-D and 3-D Breast Tissue Visualization under X-ray Dark Field Imaging
复制标题
X 射线暗视野成像下的极高对比度和极高空间分辨率 2-D、2.5-D 和 3-D 乳腺组织可视化
DOI：
10.1007/978-3-642-31271-7_14
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Kensaku Mori
中科院分区：
文献类型：
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作者：
Masami Ando;Qingkai Huo;Shu Ichihara;Tokiko Endo;Tetsuya Yuasa;Naoki Sunaguchi;Kensaku Mori
由非对称切割布拉格单色准直器（MC）制成的平行X射线束入射到乳房组织上，使得包含来自乳房组织的信息的束入射到劳厄角分析器（LAA）上。该光束随后被分成前向衍射光束和单独的衍射光束。我们同时采集两束光，每束光都包含了样品的相关角度信息，这样就可以同时推导出每个像素的角度信息。在本文中，我们提出了一种成像系统，使用暗场成像（XDFI）的二维图像，CT测量和2.5 D图像（层析合成）的基础上的一个串联系统的布拉格和劳厄壳晶体与两个CCD相机，沿着与数据处理的方法来提取信息的折射从测量纠缠强度使用摇摆曲线拟合多项式函数。软组织的重建图像的介绍和描述。
A parallel x-ray beam that is made by an asymmetric-cut Bragg monochromator-collimator (MC) is incident on breast tissue so that the beam containing information from the breast tissue is incident upon a Laue-case angle analyzer (LAA). This beam is subsequently split into a forward diffracted beam and a separate diffracted beam. We acquire two beams simultaneously each of which contains relating angular information on specimen so that one can deduce simultaneously angular information at each pixel. In this paper, we propose an imaging system using dark-field imaging (XDFI) for 2D image, CT measurement and 2.5D image (tomosynthesis) based on a tandem system of Bragg- and Laue-case crystals with two CCD cameras, along with a data-processing method to extract information on refraction from the measured entangled intensities by use of rocking curve fitting with polynomial functions. Reconstructed images of soft tissues are presented and described.