The appearance and effects of metallic implants in CT images

Kairn, T., Crowe, S.B., Fogg, P., & Trapp, J.V. (2013) The appearance and effects of metallic implants in CT images. Australasian Physical and Engineering Sciences in Medicine, 36(2), pp. 209-217.

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Contemporary 3D radiotherapy treatment planning relies upon the use of 3D electron density maps derived from computed tomography (CT) scans of patient anatomy, to evaluate the effects of that anatomy on radiation dose distributions. Production of these electron density maps requires that the CT numbers (Hounsfield units) that quantify the attenuation of the x-ray beam by the patient’s anatomy must be reliably converted into electron densities, using a stable calibration relationship. This study investigates the fidelity of electron density assignment in the presence of metallic prostheses and implants.

Impact and interest:

4 citations in Scopus
5 citations in Web of Science®
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140 since deposited on 29 May 2013
38 in the past twelve months

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ID Code: 60329
Item Type: Journal Article
Refereed: Yes
Additional Information: Published on behalf of Australasian College of Physical Scientists and Engineers in Medicine
Keywords: CT, Radiotherapy, Implants
DOI: 10.1007/s13246-013-0197-x
ISSN: 0158-9938
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OTHER PHYSICAL SCIENCES (029900) > Medical Physics (029903)
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Australasian College of Physical Scientists and Engineers in Medicine
Copyright Statement: The final publication is available at
Deposited On: 29 May 2013 22:28
Last Modified: 24 Jun 2017 16:42

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