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Attenuation-Based Automatic Tube Potential Selection in Cerebral Computed Tomography Angiography: Effects on Radiation Exposure and Image Quality

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dc.contributor.author김주희-
dc.contributor.author유정식-
dc.contributor.author정재준-
dc.contributor.author조은석-
dc.date.accessioned2019-01-15T17:03:28Z-
dc.date.available2019-01-15T17:03:28Z-
dc.date.issued2018-
dc.identifier.issn1738-2637-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/166779-
dc.description.abstractObjective: To investigate the feasibility of using the attenuation-based automatic tube potential selection (ATPS) algorithm for cerebral computed tomography angiography (CTA) and to assess radiation dose, vascular attenuation, and image quality compared to a conventional fixed 120-kVp protocol. Materials and Methods: Among 36 volunteers for cerebral CTA, a total of 18 were scanned with fixed 120 kVp and 140 effective mAs using automatic tube current modulation. The other 18 were scanned with an ATPS algorithm. Radiation doses, attenuation, contrast-to-noise ratio (CNR) of the cerebral arteries, subjective scores for arterial attenuation, edge sharpness of the artery, visibility of small arteries, venous contamination, image noise, and overall image quality were compared between the groups. Results: The volume CT dose index and effective dose of the ATPS group were lower than those of the fixed 120-kVp group. The ATPS group had significantly higher arterial attenuation and no significant difference in CNR, compared with the fixed 120-kVp. The ATPS group had higher subjective scores for arterial attenuation, edge sharpness of the artery, visibility of small arteries, and overall image quality. Conclusion: The ATPS algorithm for the cerebral CTA reduced radiation dose by 43% while maintaining image quality and improved the attenuation of cerebral arteries by selecting lower tube potential.-
dc.description.statementOfResponsibilityopen-
dc.languageKorean-
dc.publisher대한영상의학회-
dc.relation.isPartOfJournal of the Korean Society of Radiology-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.titleAttenuation-Based Automatic Tube Potential Selection in Cerebral Computed Tomography Angiography: Effects on Radiation Exposure and Image Quality-
dc.title.alternative뇌혈관 컴퓨터단층촬영 조영술에서의 감쇄 기반 자동 관전압 선택 알고리즘: 방사선 조사와 영상 품질에 미치는 영향-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Radiology (영상의학교실)-
dc.contributor.googleauthorJeong Min Choi-
dc.contributor.googleauthorJoo Hee Kim-
dc.contributor.googleauthorSeong Min Kang-
dc.contributor.googleauthorJeong-Sik Yu-
dc.contributor.googleauthorJae-Joon Chung-
dc.contributor.googleauthorEun-Suk Cho-
dc.identifier.doi10.3348/jksr.2018.78.1.35-
dc.contributor.localIdA00951-
dc.contributor.localIdA02500-
dc.contributor.localIdA02500-
dc.contributor.localIdA03712-
dc.contributor.localIdA03712-
dc.contributor.localIdA03881-
dc.contributor.localIdA03881-
dc.relation.journalcodeJ01843-
dc.identifier.eissn2288-2928-
dc.subject.keywordComputed Tomography Angiography-
dc.subject.keywordBrain-
dc.subject.keywordCerebral Arteries-
dc.subject.keywordRadiation-
dc.contributor.alternativeNameKim, Joo Hee-
dc.contributor.affiliatedAuthor김주희-
dc.contributor.affiliatedAuthor유정식-
dc.contributor.affiliatedAuthor유정식-
dc.contributor.affiliatedAuthor정재준-
dc.contributor.affiliatedAuthor정재준-
dc.contributor.affiliatedAuthor조은석-
dc.contributor.affiliatedAuthor조은석-
dc.citation.volume78-
dc.citation.number1-
dc.citation.startPage35-
dc.citation.endPage43-
dc.identifier.bibliographicCitationJournal of the Korean Society of Radiology, Vol.78(1) : 35-43, 2018-
dc.identifier.rimsid58047-
dc.type.rimsART-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers

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