Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Satoshi Oki, Kazuya Kaneda, Yoshitake Yamada, Minoru Yamada, Yutaro Morishige, Kengo Harato, Noboru Matsumura, Takeo Nagura, Masahiro Jinzaki

研究成果: Article

抜粋

Four-dimensional computed tomography (4DCT) provides a series of volume data and visualizes joint motions. However, numerical analysis of 4DCT data remains difficult because segmentation in all volumetric frames is time-consuming. We aimed to analyze joint kinematics using a sequential 3D-3D registration technique to provide the kinematics of the moving bone with respect to the fixed bone semiautomatically using 4DCT DICOM data and existing software. Surface data of the source bones are reconstructed from 3DCT. The trimmed surface data are respectively matched with surface data from the first frame in 4DCT. These trimmed surfaces are sequentially matched until the last frame. These processes provide positional information for target bones in all frames of the 4DCT. Once the coordinate systems of the target bones are decided, translation and rotation angles between any two bones can be calculated. This 4DCT analysis offers advantages in kinematic analyses of complex structures such as carpal or tarsal bones. However, fast or large-scale motions cannot be traced because of motion artifacts.

元の言語English
ジャーナルJournal of visualized experiments : JoVE
発行部数153
DOI
出版物ステータスPublished - 2019 11 23

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ASJC Scopus subject areas

  • Neuroscience(all)
  • Chemical Engineering(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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