Cited by 281Advanced X-ray and CT ImagingMedical Imaging Techniques and ApplicationsRadiation Dose and Imaging

A Method for Correcting Bone Induced Artifacts in Computed Tomography Scanners

Joseph, Peter M., Spital, Robin D.·1978·Journal of Computer Assisted Tomography

Abstract

A method that corrects for artifacts in X-ray transmission scanners created by the alteration of the energy spectrum by bone is described. The method involves two reconstructions of the pictures: the first establishes the approximate distribution of bone and the second enables the artifacts to be eliminated. The first reconstruction is needed to establish the total amount of bone along each ray. Assuming that the X-ray energy spectrum is known, it is shown how the line integrals can be corrected. The method was tested on several mathematical phantoms as well as on human head data. The nonlinear nature of the spectral artifacts is shown to produce streaks in certain phantoms.

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Crossref · 10.1097/00004728-197801000-00017

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  • The large extracranial metal components and dental cement of the implant can cause beam hardening that can appear as cupping, streaks, dark bands or flare in the μCT.

    “the large extracranial metal components and dental cement of the implant can cause beam hardening that can appear as cupping, streaks, dark bands or flare in the µCT38–40.”

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Authors
Joseph, P. M., & Spital, R. D.
Affiliations
NewYork–Presbyterian Hospital (US)
Venue
Journal of Computer Assisted Tomography
Published
1978-01
Volume
2
Issue
1
Pages
100-108
ISSN
0363-8715 (ISSN-L)
OpenAlex
W2000441297
Cited by
281
References
0
Citations by year
2026: 7 · 2025: 4 · 2024: 10 · 2023: 6 · 2022: 13 · 2021: 6 · 2020: 9 · 2019: 12 · 2018: 17 · 2017: 10 · 2016: 10 · 2015: 9 · 2014: 10 · 2013: 10 · 2012: 13
FWCI
8.33
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Computer Assisted Tomography (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Advanced X-ray and CT Imaging
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiation Dose and Imaging
Keywords
bone artifacts, spectral artifacts, X-ray spectra, streak artifacts, head CT, image reconstruction, mathematical phantoms
MeSH terms
Bone and Bones, Humans, Mathematics, Models, Structural, Skull, Technology, Radiologic, Tomography, X-Ray Computed

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