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

Clicks: 308
ID: 96583
2019
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Ranked #28 of 62 articles by views in Journal of visualized experiments : JoVE

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Abstract
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.
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oki2019fourdimensionaljournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Oki, Satoshi;Kaneda, Kazuya;Yamada, Yoshitake;Yamada, Minoru;Morishige, Yutaro;Harato, Kengo;Matsumura, Noboru;Nagura, Takeo;Jinzaki, Masahiro;
Journal Journal of visualized experiments : JoVE
Year 2019
DOI
10.3791/59857
URL
Keywords
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