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Optimal cutoff value for minimal lumen cross sectional area of coronary stents on 64-MDCT coronary angiography compared with intravascular ultrasound
DC Field | Value | Language |
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dc.contributor.author | 최지연 | - |
dc.date.accessioned | 2015-12-24T08:44:53Z | - |
dc.date.available | 2015-12-24T08:44:53Z | - |
dc.date.issued | 2011 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/134131 | - |
dc.description | Dept. of Medicine/석사 | - |
dc.description.abstract | In this study, we aimed to prospectively assess an optimal cutoff value for the minimal lumen cross sectional area (CSA) of coronary stents on 64-MDCT coronary angiography compared with intravascular ultrasound (IVUS). We performed 64-MDCT in 39 patients with 43 stents. Stenosis of more than 75% of the CSA was selected as the cutoff criterion for in-stent restenosis (ISR). The minimal lumen CSA and minimal stent CSA were measured independently on the CT images. Correlation analyses were performed between 64-MDCT and IVUS. Receiver operating characteristic (ROC) curves were calculated for the minimal lumen CSA on 64-MDCT using IVUS (significant ISR defined as minimal lumen CSA < 4mm2 on IVUS) as the gold standard. Sensitivity, specificity, positive predictive value, and negative predictive value to detect ISR using 64-MDCT were 60%, 100%, 100%, and 95%, respectively. For the assessment of minimal lumen CSA and minimal stent CSA, 64-MDCT showed a good correlation with IVUS (r = 0.73 and 0.63, p < 0.0001). However, the correlation for the area of stenosis between 64-MDCT and IVUS was weak, with a correlation coefficient of 0.29. The area under the ROC curve was 0.82 (p < 0.0001) for per-stent analysis, indicating a high degree of agreement between 64-MDCT and IVUS for significant ISR. Optimal cutoff value on 64-MDCT is 6.2mm2 using IVUS minimal CSA 4mm2 as the golden standard with sensitivity 83.33% and specificity 72%. | - |
dc.description.statementOfResponsibility | restriction | - |
dc.publisher | Graduate School, Yonsei University | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.title | Optimal cutoff value for minimal lumen cross sectional area of coronary stents on 64-MDCT coronary angiography compared with intravascular ultrasound | - |
dc.title.alternative | 다중검출컴퓨터단층촬영에서 최적의 관상 동맥 스텐트 내 재협착의 최소 단면적 기준값: 혈관내 초음파와 비교 | - |
dc.type | Thesis | - |
dc.identifier.url | https://ymlib.yonsei.ac.kr/catalog/search/book-detail/?cid=CAT000000113970 | - |
dc.contributor.alternativeName | Choi, Ji Youn | - |
dc.type.local | Thesis | - |
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