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Comparison of artery-based methods for ordinal grading of coronary artery calcium on low-dose chest computed tomography
DC Field | Value | Language |
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dc.contributor.author | 남경선 | - |
dc.contributor.author | 서영주 | - |
dc.contributor.author | 이계호 | - |
dc.contributor.author | 이수지 | - |
dc.contributor.author | 이혜정 | - |
dc.contributor.author | 최병욱 | - |
dc.date.accessioned | 2021-12-28T17:17:04Z | - |
dc.date.available | 2021-12-28T17:17:04Z | - |
dc.date.issued | 2021-11 | - |
dc.identifier.issn | 0938-7994 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/187026 | - |
dc.description.abstract | Objectives: To identify the optimal artery-based method for ordinal grading of coronary artery calcium (CAC) on non-electrocardiogram (ECG)-gated low-dose chest computed tomography (LDCT) among three methods. Methods: A total of 120 asymptomatic subjects who underwent both LDCT and ECG-gated calcium scoring CT on the same day were retrospectively enrolled. Three cardiothoracic radiologists independently assessed CAC severity on LDCT (1.25-mm and 2.5-mm slice thickness) and classified it into four categories (none, mild, moderate, or severe) using three artery-based ordinal scoring methods (extent-based scoring, Weston scoring, and length-based scoring). Inter- and intra-observer CAC severity agreements of each method were assessed by Fleiss kappa statistics. Agreements between each method and ECG-gated calcium scoring CT were assessed by weighted kappa statistics. Results: The inter-observer agreement was highest with length-based method for both 1.25-mm (Fleiss kappa 0.735 for extent-based method, 0.801 for Weston score, and 0.813 for length-based method) and 2.5-mm slice thickness evaluation (Fleiss kappa 0.755 for extent-based method, 0.776 for Weston score, and 0.833 for extent-based method). Agreement across the three grading methods for the same observer was poor to moderate on 1.25-mm (Fleiss kappa 0.379-0.441) and moderate on 2.5-mm thickness evaluation (Fleiss kappa 0.427-0.461). Agreement of CAC severity between each method and ECG-gated calcium scoring CT was highest with the length-based method for all three observers on both 1.25-mm (weighted kappa 0.773-0.786) and 2.5-mm (weighted kappa 0.794-0.825) LDCT images. Conclusion: Among the three artery-based ordinal grading methods, the length-based method appears to be the most reliable for evaluating CAC on non-ECG-gated LDCT. Key points: • The length-based method showed the highest inter-observer agreement and the highest agreement with the ECG-gated calcium scoring CT, compared with the extent-based method and the Weston score. | - |
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.subject.MESH | Calcium* | - |
dc.subject.MESH | Coronary Artery Disease* / diagnostic imaging | - |
dc.subject.MESH | Coronary Vessels / diagnostic imaging | - |
dc.subject.MESH | Humans | - |
dc.subject.MESH | Reproducibility of Results | - |
dc.subject.MESH | Retrospective Studies | - |
dc.subject.MESH | Tomography, X-Ray Computed | - |
dc.title | Comparison of artery-based methods for ordinal grading of coronary artery calcium on low-dose chest computed tomography | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiology (영상의학교실) | - |
dc.contributor.googleauthor | Suji Lee | - |
dc.contributor.googleauthor | Young Joo Suh | - |
dc.contributor.googleauthor | Kyungsun Nam | - |
dc.contributor.googleauthor | Kyeho Lee | - |
dc.contributor.googleauthor | Hye-Jeong Lee | - |
dc.contributor.googleauthor | Byoung Wook Choi | - |
dc.identifier.doi | 10.1007/s00330-021-07987-7 | - |
dc.contributor.localId | A05862 | - |
dc.contributor.localId | A01892 | - |
dc.contributor.localId | A02665 | - |
dc.contributor.localId | A05590 | - |
dc.contributor.localId | A03320 | - |
dc.contributor.localId | A04059 | - |
dc.relation.journalcode | J00851 | - |
dc.identifier.eissn | 1432-1084 | - |
dc.identifier.pmid | 33885959 | - |
dc.identifier.url | https://link.springer.com/article/10.1007%2Fs00330-021-07987-7 | - |
dc.subject.keyword | Calcium | - |
dc.subject.keyword | Coronary vessels | - |
dc.subject.keyword | Observer variation | - |
dc.subject.keyword | Thorax | - |
dc.subject.keyword | Tomography, X-ray computed | - |
dc.contributor.alternativeName | Nam, Kyungsun | - |
dc.contributor.affiliatedAuthor | 남경선 | - |
dc.contributor.affiliatedAuthor | 서영주 | - |
dc.contributor.affiliatedAuthor | 이계호 | - |
dc.contributor.affiliatedAuthor | 이수지 | - |
dc.contributor.affiliatedAuthor | 이혜정 | - |
dc.contributor.affiliatedAuthor | 최병욱 | - |
dc.citation.volume | 31 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 8108 | - |
dc.citation.endPage | 8115 | - |
dc.identifier.bibliographicCitation | EUROPEAN RADIOLOGY, Vol.31(11) : 8108-8115, 2021-11 | - |
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