Cited 5 times in
Non-inferior low-dose coronary computed tomography angiography image quality with knowledge-based iterative model reconstruction for overweight patients
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김태훈 | - |
dc.contributor.author | 박철환 | - |
dc.contributor.author | 오치석 | - |
dc.contributor.author | 이주희 | - |
dc.date.accessioned | 2019-02-12T16:41:57Z | - |
dc.date.available | 2019-02-12T16:41:57Z | - |
dc.date.issued | 2018 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/167092 | - |
dc.description.abstract | We investigated the feasibility of low-dose coronary computed tomography angiography (CCTA), using a prospective electrocardiogram (ECG)-triggered axial scan protocol, knowledge-based iterative model reconstruction (IMR), and fixed tube current, in overweight subjects. Forty non-overweight (group A; body-mass index [BMI] < 25 kg/m2) and 40 overweight individuals (group B; BMI = 25-30 kg/m2), who underwent CCTA for coronary artery disease screening, were retrospectively and consecutively enrolled. A 64-slice CT scanner was used at 100-kVp tube voltage and 150-mA tube current, and images were reconstructed using IMR techniques. Image noise, attenuation at the aorta, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) at the proximal right and left main coronary arteries (pRCA and LMCA) were calculated. CCTA images were qualitatively evaluated using a four-point scale (1, poor; 4, excellent) and analyzed using a non-inferiority test with a pre-defined non-inferiority margin of -0.2. The mean CCTA radiation dose (Group A: 1.33 ± 0.02 mSv; Group B: 1.35 ± 0.10 mSv; p = 0.151) and mean aortic root CT attenuation values (Group A: 447.9 ± 81.6 HU; Group B: 439.5 ± 63.6 HU; p = 0.571) did not differ significantly between the two groups. The mean noise in groups A and B was 26.0 ± 4.8 HU and 29.2 ± 4.4 HU, respectively (p = 0.005). The noise reduction ratio in the groups, compared to filtered back projection, was 65.0% and 68.1%, respectively. The mean grade of image quality did not differ significantly (3.75 ± 0.04 vs. 3.71 ± 0.04, p = 0.478). Group B CCTA image quality was non-inferior (mean difference = -0.043, 95% CI = -0.162-0.077) to that of Group A. We concluded that low-dose CCTA with prospective ECG-triggering and IMR might be applied to overweight subjects, as well as to normal-weight subjects, by using a fixed tube current without an increase in tube current based on the patient's body size. | - |
dc.description.statementOfResponsibility | open | - |
dc.language | English | - |
dc.publisher | Public Library of Science | - |
dc.relation.isPartOf | PLOS ONE | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.title | Non-inferior low-dose coronary computed tomography angiography image quality with knowledge-based iterative model reconstruction for overweight patients | - |
dc.title.alternative | . | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiology (영상의학교실) | - |
dc.contributor.googleauthor | In Kyung Park | - |
dc.contributor.googleauthor | Jeffrey Park | - |
dc.contributor.googleauthor | Tae Hoon Kim | - |
dc.contributor.googleauthor | Joohee Lee | - |
dc.contributor.googleauthor | Kyunghwa Han | - |
dc.contributor.googleauthor | Chisuk Oh | - |
dc.contributor.googleauthor | Chul Hwan Park | - |
dc.identifier.doi | 10.1371/journal.pone.0209243 | - |
dc.contributor.localId | A01086 | - |
dc.contributor.localId | A01722 | - |
dc.contributor.localId | A04978 | - |
dc.contributor.localId | A05545 | - |
dc.relation.journalcode | J02540 | - |
dc.identifier.eissn | 1932-6203 | - |
dc.identifier.pmid | 30586449 | - |
dc.contributor.alternativeName | Kim, Tae Hoon | - |
dc.contributor.affiliatedAuthor | 김태훈 | - |
dc.contributor.affiliatedAuthor | 박철환 | - |
dc.contributor.affiliatedAuthor | 오치석 | - |
dc.contributor.affiliatedAuthor | 이주희 | - |
dc.citation.volume | 13 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | e209243 | - |
dc.identifier.bibliographicCitation | PLOS ONE, Vol.13(12) : e209243, 2018 | - |
dc.identifier.rimsid | 58074 | - |
dc.type.rims | ART | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.