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논문 기본 정보

자료유형
학술저널
저자정보
Lee Sunyoung (Department of Radiology and Research Institute of Radiological Science Severance Hospital Yonsei Un) 김경원 (울산대학교) 김소연 (울산대학교) Seo Nieun (Department of Radiology Severance Hospital Yonsei University College of Medicine Seoul Korea.) Song Gi-Won (Department of Surgery Asan Medical Center University of Ulsan College of Medicine Seoul Korea) Lee Sung-Gyu (Department of Surgery Asan Medical Center University of Ulsan College of Medicine Seoul Korea)
저널정보
대한초음파의학회 ULTRASONOGRAPHY ULTRASONOGRAPHY Vol.41 No.1
발행연도
2022.1
수록면
164 - 170 (7page)
DOI
10.14366/usg.21071

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초록· 키워드

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Purpose: This study aimed to determine the diagnostic performance of the controlled attenuation parameter (CAP) measured using transient elastography (TE) for assessing macrovesicular steatosis (MaS) in potential living liver donors using same-day biopsy as a reference standard.Methods: This retrospective study included 204 living liver donor candidates who underwent TE and liver biopsy on the same day between July 2013 and June 2014. The histologic degree of MaS was determined. The area under the receiver operating characteristic curve (AUROC) was used to evaluate the performance of CAP for diagnosing MaS of >10%, and the optimal cutoff value was identified using the maximal Youden index.Results: Based on liver biopsy, 185 subjects had MaS of ≤10% and 19 had MaS of >10%. The CAP value was significantly correlated with the percentage of MaS on liver biopsy (r=0.635, P<0.001), and the median CAP value was significantly higher in subjects with MaS of >10% than in those with MaS of ≤10% (300 dB/m vs. 209 dB/m, P<0.001). The AUROC for diagnosing MaS of >10% by CAP was 0.938 (95% confidence interval, 0.896 to 0.967), and a CAP of >259 dB/m yielded a sensitivity of 84.2% and a specificity of 92.4%.Conclusion: The CAP measured using TE was significantly correlated with MaS and accurately detected substantial MaS in potential living liver donors. The CAP is a promising tool for the noninvasive diagnosis of MaS and may be used to screen unsuitable living liver donor candidates.

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