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Proceedings Paper

Application of x-ray computed tomography based on the refraction contrast to biomedicine
Author(s): Eiko Hashimoto; Anton Maksimenko; Hiroshi Sugiyama; Kazuyuki Hyodo; Daisuke Shimao; Tetsuya Yuasa; Yoshinori Nishino; Tetsuya Ishikawa; Koichi Mori; Yoshinori Arai; Keiichi Hirano; Masami Ando
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Paper Abstract

We have developed X-ray refraction based computed tomography (CT) which is able to visualize soft tissue in between hard tissue. The experimental system consists of Si(220) diffraction double-crystals called the DEI (diffraction-enhanced imaging) method, object locating in between them and a CCD camera to acquire data of 900 x-ray images. The x-ray energy used was 17.5 keV. The algorithm used to reconstruct CT images has been invented by A. Maksimenko et al.. We successfully visualized calcification and distribution of breast cancer nest which are the inner structure. It has much higher contrast which in comparison with the conventional absorption based CT system.

Paper Details

Date Published: 2 March 2006
PDF: 8 pages
Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 614213 (2 March 2006); doi: 10.1117/12.654313
Show Author Affiliations
Eiko Hashimoto, Graduate Univ. for Advanced Studies (Japan)
Anton Maksimenko, Institute of Materials Structure Science (Japan)
Hiroshi Sugiyama, Graduate Univ. for Advanced Studies (Japan)
Institute of Materials Structure Science (Japan)
Kazuyuki Hyodo, Institute of Materials Structure Science (Japan)
Graduate Univ. for Advanced Studies (Japan)
Daisuke Shimao, Graduate Univ. for Advanced Studies (Japan)
Ibaraki Prefectural Univ. (Japan)
Tetsuya Yuasa, Yamagata Univ. (Japan)
Yoshinori Nishino, RIKEN Harima Institute (Japan)
Tetsuya Ishikawa, RIKEN Harima Institute (Japan)
Koichi Mori, Ibaraki Prefectural Univ. of Health Science (Japan)
Yoshinori Arai, Matsumoto Dental Univ. (Japan)
Keiichi Hirano, Institute of Materials Structure Science (Japan)
Masami Ando, Graduate Univ. for Advanced Studies (Japan)
Institute of Materials Structure Science (Japan)


Published in SPIE Proceedings Vol. 6142:
Medical Imaging 2006: Physics of Medical Imaging
Michael J. Flynn; Jiang Hsieh, Editor(s)

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