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Open Access

Four-dimensional computed tomography: musculoskeletal applications

Murray T. Wong, Charmaine Wiens, Michael Kuczynski, Sarah Manske and Prism S. Schneider
Can J Surg June 14, 2022 65 (3) E388-E393; DOI: https://doi.org/10.1503/cjs.023420
Murray T. Wong
From the Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary Alta.
MD, MSc
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Charmaine Wiens
From the Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary Alta.
MD
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Michael Kuczynski
From the Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary Alta.
BSc
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Sarah Manske
From the Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary Alta.
PhD
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Prism S. Schneider
From the Section of Orthopaedic Surgery, Department of Surgery, University of Calgary, Calgary Alta.
MD, PhD
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Figures

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    Fig. 1

    Coronal 4-dimensional computed tomography (4DCT) images showing relative position of the trapeziometacarpal joint at 3 positions of progressive thumb adduction. Three-dimensional bony models can be registered to 4DCT volumes to quantify changes in relative positions during motion.

  • Fig. 2
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    Fig. 2

    Axial 4-dimensional computed tomography images showing syndesmotic reduction in plantar flexion (left) and dorsiflexion (right) as measured by the anterior (AN), middle (MN) and posterior (PN) syndesmosis distances.

  • Fig. 3
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    Fig. 3

    Axial 4-dimensional computed tomography images showing that substantial motion artifact occurs in the forefoot during ankle plantar flexion and dorsiflexion if the tibia remains stationary. Motion artifact can be minimized by holding the area of interest in a fixed position and moving the body or limb relative to that area of interest.

  • Fig. 4
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    Fig. 4

    Axial 4-dimensional computed tomography images showing an ankle with metal implants after open reduction internal fixation of an ankle fracture. The metal artifact disrupts image-processing routines and obscures the anatomy.

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In this issue

Canadian Journal of Surgery: 65 (3)
Can J Surg
Vol. 65, Issue 3
17 May 2022
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Four-dimensional computed tomography: musculoskeletal applications
Murray T. Wong, Charmaine Wiens, Michael Kuczynski, Sarah Manske, Prism S. Schneider
Can J Surg Jun 2022, 65 (3) E388-E393; DOI: 10.1503/cjs.023420

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Four-dimensional computed tomography: musculoskeletal applications
Murray T. Wong, Charmaine Wiens, Michael Kuczynski, Sarah Manske, Prism S. Schneider
Can J Surg Jun 2022, 65 (3) E388-E393; DOI: 10.1503/cjs.023420
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