Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 백승연 | * |
dc.contributor.author | 김유경 | * |
dc.contributor.author | 이정경 | * |
dc.contributor.author | 심성신 | * |
dc.contributor.author | 조현혜 | * |
dc.date.accessioned | 2016-08-28T10:08:04Z | - |
dc.date.available | 2016-08-28T10:08:04Z | - |
dc.date.issued | 2013 | * |
dc.identifier.issn | 1229-6929 | * |
dc.identifier.other | OAK-10148 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/223777 | - |
dc.description.abstract | Objective: To evaluate the reliability of virtual non-contrast (VNC) images reconstructed from contrast-enhanced, dual-energy scans compared with true non-contrast (TNC) images in the assessment of high CT attenuation or calcification of mediastinal lymph nodes. Materials and Methods: A total of 112 mediastinal nodes from 45 patients who underwent non-contrast and dual-energy contrast-enhanced scans were analyzed. Node attenuation in TNC and VNC images was compared both objectively, using computed tomography (CT) attenuation, and subjectively, via visual scoring (0, attenuation ≤ the aorta; 1, > the aorta; 2, calcification). The relationship among attenuation difference between TNC and VNC images, CT attenuation in TNC images, and net contrast enhancement (NCE) was analyzed. Results: CT attenuation in TNC and VNC images showed moderate agreement (intraclass correlation coefficient, 0. 612). The mean absolute difference was 7. 8 ± 7. 6 Hounsfield unit (HU) (range, 0-36 HU), and the absolute difference was equal to or less than 10 HU in 65. 2% of cases (73/112). Visual scores in TNC and VNC images showed fair agreement (k value, 0. 335). Five of 16 nodes (31. 3%) which showed score 1 (n = 15) or 2 (n = 1) in TNC images demonstrated score 1 in VNC images. The TNC-VNC attenuation difference showed a moderate positive correlation with CT attenuation in TNC images (partial correlation coefficient [PCC] adjusted by NCE: 0. 455) and a weak negative correlation with NCE (PCC adjusted by CT attenuation in TNC: -0. 245). Conclusion: VNC images may be useful in the evaluation of mediastinal lymph nodes by providing additional information of high CT attenuation of nodes, although it is underestimated compared with TNC images. | * |
dc.language | English | * |
dc.title | Dual-energy CT in the assessment of mediastinal lymph nodes: Comparative study of virtual non-contrast and true non-contrast images | * |
dc.type | Article | * |
dc.relation.issue | 3 | * |
dc.relation.volume | 14 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.index | KCI | * |
dc.relation.startpage | 532 | * |
dc.relation.lastpage | 539 | * |
dc.relation.journaltitle | Korean Journal of Radiology | * |
dc.identifier.doi | 10.3348/kjr.2013.14.3.532 | * |
dc.identifier.wosid | WOS:000319782600024 | * |
dc.identifier.scopusid | 2-s2.0-84877985395 | * |
dc.author.google | Yoo S.Y. | * |
dc.author.google | Kim Y. | * |
dc.author.google | Cho H.H. | * |
dc.author.google | Choi M.J. | * |
dc.author.google | Shim S.S. | * |
dc.author.google | Lee J.K. | * |
dc.author.google | Baek S.Y. | * |
dc.contributor.scopusid | 백승연(7201371530) | * |
dc.contributor.scopusid | 김유경(55771213900;57226682807;57226682808) | * |
dc.contributor.scopusid | 이정경(35316081600) | * |
dc.contributor.scopusid | 심성신(8961849900;36104710800) | * |
dc.date.modifydate | 20240123094344 | * |