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A Method for Correcting Bone Induced Artifacts in Computed Tomography Scanners
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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“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.”
From Oxytocin neurons enable social transmission of maternal behaviour (2021) · cites this paper as [40]
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CT artifacts: causes and reduction techniques
Boas, F. E., & Fleischmann, D. (2012) · Imaging in Medicine · doi:10.2217/iim.12.13 · Cited by 850
“This can be addressed using iterative reconstruction [12, 13].”
BackgroundStatistical image reconstruction for polyenergetic X-ray computed tomography
Elbakri, I. A., & Fessler, J. A. (2002) · IEEE Transactions on Medical Imaging · doi:10.1109/42.993128 · Cited by 693
“These classes can be determined by segmenting a FBP reconstruction that has been “corrected” for beam hardening effects [18].”
BackgroundMethodResultInfluentialX-ray-based attenuation correction for positron emission tomography/computed tomography scanners
Kinahan, P. E., Hasegawa, B. H., & Beyer, T. (2003) · Seminars in Nuclear Medicine · doi:10.1053/snuc.2003.127307 · Cited by 515
Assessment of abdominal fat content by computed tomography
Borkan, G. A., Gerzof, S. G., Robbins, A. H., Hults, D. E., Silbert, C. K., & Silbert, J. E. (1982) · American Journal of Clinical Nutrition · doi:10.1093/ajcn/36.1.172 · Cited by 491
An iterative maximum-likelihood polychromatic algorithm for CT
Man, B. D., Nuyts, J. L., Dupont, P. J., et al. (2001) · IEEE Transactions on Medical Imaging · doi:10.1109/42.959297 · Cited by 431
“All other methods [ 18 ]‐[26] are either limited to two or three substances, or apply some extra approximations because of limited computational power at the time they were invented.”
BackgroundMethod
Metadata
- 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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