Cited 44 times in
Head CT: Image quality improvement with ASIR-V using a reduced radiation dose protocol for children
DC Field | Value | Language |
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dc.contributor.author | 김명준 | - |
dc.contributor.author | 이승구 | - |
dc.contributor.author | 이호준 | - |
dc.date.accessioned | 2018-07-20T08:02:37Z | - |
dc.date.available | 2018-07-20T08:02:37Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 0938-7994 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/160780 | - |
dc.description.abstract | OBJECTIVE: To investigate the quality of images reconstructed with adaptive statistical iterative reconstruction V (ASIR-V), using pediatric head CT protocols. METHODS: A phantom was scanned at decreasing 20% mA intervals using our standard pediatric head CT protocols. Each study was then reconstructed at 10% ASIR-V intervals. After the phantom study, we reduced mA by 10% in the protocol for <3-year-old patients and applied 30% ASIR-V and by 30% in the protocol for 3- to 15-year-old patients and applied 40% ASIR-V. RESULTS: Increasing the percentage of ASIR-V resulted in lower noise and higher contrast-to-noise ratio (CNR) and preserved spatial resolution in the phantom study. Compared to a conventional-protocol, reduced-dose protocol with ASIR-V achieved 12.8% to 34.0% of dose reduction and showed images of lower noise (9.22 vs. 10.73, P = 0.043) and higher CNR in different levels (centrum semiovale, 2.14 vs. 1.52, P = 0.003; basal ganglia, 1.46 vs. 1.07, P = 0.001; and cerebellum, 2.18 vs. 1.33, P < 0.001). Qualitative analysis showed higher gray-white matter differentiation and sharpness and preserved overall diagnostic quality in the images with ASIR-V. CONCLUSIONS: Use of ASIR-V allowed a 12.8% to 34.0% dose reduction in each age group with potential to improve image quality. KEY POINTS: • It is possible to reduce radiation dose and improve image quality with ASIR-V. • We improved noise and CNR and decreased radiation dose. • Sharpness improved with ASIR-V. • Total radiation dose was decreased by 12.8% to 34.0%. | - |
dc.description.statementOfResponsibility | restriction | - |
dc.language | English | - |
dc.publisher | Springer International | - |
dc.relation.isPartOf | EUROPEAN RADIOLOGY | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.subject.MESH | Adolescent | - |
dc.subject.MESH | Brain/diagnostic imaging* | - |
dc.subject.MESH | Child | - |
dc.subject.MESH | Child, Preschool | - |
dc.subject.MESH | Clinical Protocols | - |
dc.subject.MESH | Female | - |
dc.subject.MESH | Humans | - |
dc.subject.MESH | Male | - |
dc.subject.MESH | Phantoms, Imaging | - |
dc.subject.MESH | Quality Improvement | - |
dc.subject.MESH | Radiation Dosage | - |
dc.subject.MESH | Radiographic Image Interpretation, Computer- | - |
dc.subject.MESH | Assisted/methods | - |
dc.subject.MESH | Reproducibility of Results | - |
dc.subject.MESH | Retrospective Studies | - |
dc.subject.MESH | Tomography, X-Ray Computed/methods* | - |
dc.subject.MESH | Tomography, X-Ray Computed/standards | - |
dc.title | Head CT: Image quality improvement with ASIR-V using a reduced radiation dose protocol for children | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine | - |
dc.contributor.department | Dept. of Radiology | - |
dc.contributor.googleauthor | Hyun Gi Kim | - |
dc.contributor.googleauthor | Ho-Joon Lee | - |
dc.contributor.googleauthor | Seung-Koo Lee | - |
dc.contributor.googleauthor | Hyun Ji Kim | - |
dc.contributor.googleauthor | Myung-Joon Kim | - |
dc.identifier.doi | 10.1007/s00330-017-4733-z | - |
dc.contributor.localId | A00425 | - |
dc.contributor.localId | A02912 | - |
dc.contributor.localId | A03329 | - |
dc.relation.journalcode | J00851 | - |
dc.identifier.eissn | 1432-1084 | - |
dc.identifier.pmid | 28116512 | - |
dc.identifier.url | https://link.springer.com/article/10.1007%2Fs00330-017-4733-z | - |
dc.subject.keyword | Brain | - |
dc.subject.keyword | Computer-assisted methods | - |
dc.subject.keyword | Pediatric | - |
dc.subject.keyword | Radiation dosage | - |
dc.subject.keyword | Radiation protection methods | - |
dc.contributor.alternativeName | Kim, Myung Joon | - |
dc.contributor.alternativeName | Lee, Seung Koo | - |
dc.contributor.alternativeName | Lee, Ho Joon | - |
dc.contributor.affiliatedAuthor | Kim, Myung Joon | - |
dc.contributor.affiliatedAuthor | Lee, Seung Koo | - |
dc.contributor.affiliatedAuthor | Lee, Ho Joon | - |
dc.citation.volume | 27 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 3609 | - |
dc.citation.endPage | 3617 | - |
dc.identifier.bibliographicCitation | EUROPEAN RADIOLOGY, Vol.27(9) : 3609-3617, 2017 | - |
dc.identifier.rimsid | 60666 | - |
dc.type.rims | ART | - |
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