3D reconstruction of internal structure of animal body using near-infrared light

Trung Nghia Tran, Kohei Yamamoto, Takeshi Namita, Yuji Kato, Koichi Shimizu

研究成果: Conference contribution

抄録

To realize three-dimensional (3D) optical imaging of the internal structure of animal body, we have developed a new technique to reconstruct CT images from two-dimensional (2D) transillumination images. In transillumination imaging, the image is blurred due to the strong scattering in the tissue. We had developed a scattering suppression technique using the point spread function (PSF) for a fluorescent light source in the body. In this study, we have newly proposed a technique to apply this PSF for a light source to the image of unknown light-absorbing structure. The effectiveness of the proposed technique was examined in the experiments with a model phantom and a mouse. In the phantom experiment, the absorbers were placed in the tissue-equivalent medium to simulate the light-absorbing organs in mouse body. Near-infrared light was illuminated from one side of the phantom and the image was recorded with CMOS camera from another side. Using the proposed techniques, the scattering effect was efficiently suppressed and the absorbing structure can be visualized in the 2D transillumination image. Using the 2D images obtained in many different orientations, we could reconstruct the 3D image. In the mouse experiment, an anesthetized mouse was held in an acrylic cylindrical holder. We can visualize the internal organs such as kidneys through mouse's abdomen using the proposed technique. The 3D image of the kidneys and a part of the liver were reconstructed. Through these experimental studies, the feasibility of practical 3D imaging of the internal light-absorbing structure of a small animal was verified.

本文言語English
ホスト出版物のタイトルBiomedical Applications of Light Scattering VIII
出版社SPIE
ISBN(印刷版)9780819498656
DOI
出版ステータスPublished - 2014
外部発表はい
イベントBiomedical Applications of Light Scattering VIII - San Francisco, CA, United States
継続期間: 2014 2 12014 2 3

出版物シリーズ

名前Progress in Biomedical Optics and Imaging - Proceedings of SPIE
8952
ISSN(印刷版)1605-7422

Other

OtherBiomedical Applications of Light Scattering VIII
国/地域United States
CitySan Francisco, CA
Period14/2/114/2/3

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • 原子分子物理学および光学
  • 放射線学、核医学およびイメージング

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