Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2007 Dec;36(12):1163-9.
doi: 10.1007/s00256-007-0374-7. Epub 2007 Sep 6.

Four-dimensional computed tomographic imaging in the wrist: proof of feasibility in a cadaveric model

Shian-Chao Tay  1 , Andrew N Primak, Joel G Fletcher, Bernhard Schmidt, Kimberly K Amrami, Richard A Berger, Cynthia H McCollough
Affiliations

Four-dimensional computed tomographic imaging in the wrist: proof of feasibility in a cadaveric model

Shian-Chao Tay et al. Skeletal Radiol. 2007 Dec.

Abstract

Objective: High-resolution real-time three-dimensional (3D) imaging of the moving wrist may provide novel insights into the pathophysiology of joint instability. The purpose of this work was to assess the feasibility of using retrospectively gated spiral computed tomography (CT) to perform four-dimensional (4D) imaging of the moving wrist joint.

Materials and methods: A cadaver forearm from below the elbow was mounted on a motion simulator which performed radioulnar deviation of the wrist at 30 cycles per minute. An electronic trigger from the simulator provided the "electrocardiogram" (ECG) signal required for gated reconstructions. Four-dimensional and 3D images were compared by a blinded observer for image quality and presence of artifacts.

Results: Image quality of 4D images was found to be excellent at the extremes of radial and ulnar deviation (end-motion phases). Some artifacts were seen in mid-motion phases.

Conclusion: 4D CT musculoskeletal imaging is feasible. Four-dimensional CT may allow clinicians to assess functional (dynamic) instabilities of the wrist joint.

PubMed Disclaimer

References

    1. Med Phys. 2004 Feb;31(2):333-40 - PubMed
    1. J Comput Assist Tomogr. 2008 Jul-Aug;32(4):634-9 - PubMed
    1. J Hand Surg Am. 2005 Sep;30(5):937-42 - PubMed
    1. Radiographics. 2000 Nov-Dec;20(6):1675-81 - PubMed
    1. Eur J Radiol. 2006 Mar;57(3):331-5 - PubMed

Publication types