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

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• 作者：Masami Ando (1) msm-ando@rs.noda.tus.ac.jp
  Qingkai Huo (1) ddllhqk76@gmail.com
  Shu Ichihara (2) shu-kkr@umin.ac.jp
  Tokiko Endo (2) endot@nnh.hosp.go.jp
  Tetsuya Yuasa (3) yuasa@yz.yamagata-u.ac.jp
  Naoki Sunaguchi (4) kuroiinazuma@gmail.com
  Kensaku Mori (5)
• 关键词：X ; ray dark ; field imaging &#8211 ; synchrotron radiation &#8211 ; refraction contrast &#8211 ; 2D image &#8211 ; 2.5D (tomosynthesis) image &#8211 ; 3D image &#8211 ; breast tissue &#8211 ; breast cancer
• 刊名：Lecture Notes in Computer Science
• 出版年：2012
• 出版时间：2012
• 年：2012
• 卷：7361
• 期：1
• 页码：104-110
• 全文大小：3.3 MB
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• 作者单位：1. RIST, Tokyo University of Science, Noda, 278-8510 Japan2. Department of Advanced Diagnosis, NMC, Nagoya, 460-0001 Japan3. Faculty of Engineering, Yamagata University, Yonezawa, 992-8510 Japan4. Photon Factory, KEK, Oho 1-1, Tsukuba, Ibaraki 305-0801, Japan5. Graduate School of IS, Nagoya University, Nagoya, 464-8603 Japan
• ISSN：1611-3349

文摘

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.