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Controlled attenuation parameter (CAP) for detection of hepatic steatosis in patients with chronic liver diseases: a prospective study of a native Korean population

Authors
 Young Eun Chon  ;  Kyu Sik Jung  ;  Seung Up Kim‡  ;  Jun Yong Park  ;  Young Nyun Park  ;  Do Young Kim  ;  Sang Hoon Ahn  ;  Chae Yoon Chon  ;  Hye Won Lee  ;  Yehyun Park  ;  Kwang-Hyub Han 
Citation
 LIVER INTERNATIONAL, Vol.34(1) : 102-109, 2014 
Journal Title
 LIVER INTERNATIONAL 
ISSN
 1478-3223 
Issue Date
2014
MeSH
Adolescent ; Adult ; Area Under Curve ; Asian Continental Ancestry Group* ; Biopsy ; Chronic Disease ; Elasticity Imaging Techniques/methods* ; Fatty Liver/diagnostic imaging* ; Fatty Liver/ethnology ; Female ; Humans ; Linear Models ; Liver Diseases/diagnostic imaging* ; Liver Diseases/ethnology ; Male ; Middle Aged ; Multivariate Analysis ; Predictive Value of Tests ; Prospective Studies ; ROC Curve ; Republic of Korea ; Risk Factors ; Severity of Illness Index ; Young Adult
Keywords
Chronic liver disease ; controlled attenuation parameter ; fatty liver ; non-alcoholic fatty liver disease ; non-alcoholic steatohepatitis ; steatosis
Abstract
BACKGROUND: Controlled attenuation parameter (CAP) is a non-invasive method of measuring hepatic steatosis using a process based on transient elastography. We investigated the diagnostic accuracy of CAP in detecting hepatic steatosis in patients with chronic liver disease (CLD). METHODS: A total of 135 patients with CLD who underwent liver biopsy and CAP were consecutively enrolled in this prospective study. The performance of CAP for detection of hepatic steatosis compared with liver biopsy was calculated using area under receiver operating characteristics curves (AUROC). Steatosis was categorized into S0 (<5%), S1 (5-33%), S2 (34-66%) and S3 (>66% of hepatocytes). RESULTS: Male gender predominated (n = 87, 64%) and the median age was 51 years. The aetiologies of CLD included non-alcoholic fatty liver disease (n = 56, 41.5%) and chronic viral hepatitis because of hepatitis B (n = 47, 34.8%) and C (n = 12, 8.9%). Steatosis repartition was: S0 31.1% (n = 42), S1 43.7% (n = 59), S2 18.5% (n = 25) and S3 6.7% (n = 9) respectively. In the multivariate analysis, steatosis grade and body mass index were independently associated with CAP (all P < 0.001), whereas fibrosis stage and activity grade were not. The AUROCs of CAP were 0.885 for ≥S1 (sensitivity 73.1%, specificity 95.2%), 0.894 for ≥S2 (sensitivity 82.4%, specificity 86.1%) and 0.800 for S3 (sensitivity 77.8%, specificity 84.1%). The optimal cut-off CAP values that maximized the Youden index were 250 dB/m (≥S1), 299 dB/m (≥S2), and 327 dB/m (=S3) respectively. CONCLUSIONS: Our data showed that CAP had high diagnostic accuracy for detecting hepatic steatosis in patients with CLD and suggested that CAP is also applicable for Asian patients.
Full Text
http://onlinelibrary.wiley.com/doi/10.1111/liv.12282/abstract
DOI
10.1111/liv.12282
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Do Young(김도영)
Kim, Seung Up(김승업) ORCID logo https://orcid.org/0000-0002-9658-8050
Park, Young Nyun(박영년) ORCID logo https://orcid.org/0000-0003-0357-7967
Park, Yehyun(박예현) ORCID logo https://orcid.org/0000-0001-8811-0631
Park, Jun Yong(박준용) ORCID logo https://orcid.org/0000-0001-6324-2224
Ahn, Sang Hoon(안상훈) ORCID logo https://orcid.org/0000-0002-3629-4624
Lee, Hye Won(이혜원) ORCID logo https://orcid.org/0000-0002-3552-3560
Chon, Young Eun(전영은)
Jung, Kyu Sik(정규식)
Han, Kwang-Hyub(한광협) ORCID logo https://orcid.org/0000-0003-3960-6539
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/97954
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