Cited 3 times in
Technical Note: A model-based sinogram correction for beam hardening artifact reduction in CT
DC Field | Value | Language |
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dc.contributor.author | 정용은 | - |
dc.date.accessioned | 2018-07-20T08:10:25Z | - |
dc.date.available | 2018-07-20T08:10:25Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 0094-2405 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/160923 | - |
dc.description.abstract | PURPOSE: This study aims to propose a physics-based method of reducing beam-hardening artifacts induced by high-attenuation materials such as metal stents or other metallic implants. METHODS: The proposed approach consists of deriving a sinogram inconsistency formula representing the energy dependence of the attenuation coefficient of high-attenuation materials. This inconsistency formula more accurately represents the inconsistencies of the sinogram than that of a previously reported formula (called the MAC-BC method). This is achieved by considering the properties of the high-attenuation materials, which include the materials' shapes and locations and their effects on the incident X-ray spectrum, including their attenuation coefficients. RESULTS: Numerical simulation and phantom experiment demonstrate that the modeling error of MAC-BC method are nearly completely removed by means of the proposed method. CONCLUSION: The proposed method reduces beam-hardening artifacts arising from high-attenuation materials by relaxing the assumptions of the MAC-BC method. In doing so, it outperforms the original MAC-BC method. Further research is required to address other potential sources of metal artifacts, such as photon starvation, scattering, and noise. | - |
dc.description.statementOfResponsibility | restriction | - |
dc.language | English | - |
dc.publisher | Published for the American Assn. of Physicists in Medicine by the American Institute of Physics. | - |
dc.relation.isPartOf | MEDICAL PHYSICS | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.title | Technical Note: A model-based sinogram correction for beam hardening artifact reduction in CT | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine | - |
dc.contributor.department | Dept. of Radiology | - |
dc.contributor.googleauthor | Sung Min Lee | - |
dc.contributor.googleauthor | Jin Keun Seo | - |
dc.contributor.googleauthor | Yong Eun Chung | - |
dc.contributor.googleauthor | Jong duk Baek | - |
dc.contributor.googleauthor | Hyoung Suk Park | - |
dc.identifier.doi | 10.1002/mp.12218 | - |
dc.contributor.localId | A03662 | - |
dc.relation.journalcode | J02206 | - |
dc.identifier.eissn | 2473-4209 | - |
dc.identifier.pmid | 28901618 | - |
dc.identifier.url | https://aapm.onlinelibrary.wiley.com/doi/full/10.1002/mp.12218 | - |
dc.subject.keyword | beam hardening artifacts | - |
dc.subject.keyword | computerized tomography | - |
dc.subject.keyword | metal artifact reduction | - |
dc.contributor.alternativeName | Chung, Yong Eun | - |
dc.contributor.affiliatedAuthor | Chung, Yong Eun | - |
dc.citation.volume | 44 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | e147 | - |
dc.citation.endPage | e152 | - |
dc.identifier.bibliographicCitation | MEDICAL PHYSICS, Vol.44(9) : e147-e152, 2017 | - |
dc.identifier.rimsid | 60801 | - |
dc.type.rims | ART | - |
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