Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Comparison of chemiluminescence immunoassay (CIA) and immunochromatography assay(ICA) for Detecting HBsAg and Anti-HBs

B형 간염항원 및 항체 검사를 위한 화학발광면역검사법(CIA)과 면역크로마토그래피법(ICA)의 비교분석

  • Kim, Hye-Jeong (Department of Biomedical Laboratory Science, Kyungwoon University) ;
  • Kim, Eun-Hee (Department of Dental Hygiene, Kyungwoon University)
  • 김혜정 (경운대학교 임상병리학과) ;
  • 김은희 (경운대학교 치위생학과)
  • Received : 2013.06.24
  • Accepted : 2013.07.11
  • Published : 2013.07.31
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Abstract

Diverse immunoassays including a chemiluminescent immunoassay (CIA) are used to detect hepatitis B surface antigen (HBsAg) and antibody (anti-HBs). Recently, an increasing number of institutions have been utilizing an immunochromatography assay (ICA), which is easy to use. In this study, We evaluated ICA kits for the rapid detection of HBsAg and anti-HBs by comparing them with a CIA. A total of 120 serum hospital samples, were collected for the whole month, were assayed using ICA kit. The Concordance rate, sensitivity, specificity, positive predictive value and negative predictive value of the ICA for HBsAg based on CIA results were 97%, 97%, 100%, 100%, and 96.8%, respectively. The diagnostic performances of the ICA for Anti-HBs were 90%, 90%, 93.3%, 93.1%, and 90.3%, respectively. The ICA kit failed to detect HBsAg and anti-HBs in low reactive samples. The ICA kits for the rapid detection of HBsAg might be recommended for interpreted with caution and dual analysis in the clinical laboratory.

B형간염표면 항원 및 항체(HBsAg와 anti-HBs)에 대한 검사 방법으로 화학발광면역검사법(CIA)을 포함한 면역검사법을 주로 사용하고 있으나 최근 간편한 면역크로마토그래피법(ICA)의 사용이 늘고 있는 추세이다. 본 연구에서는 CIA법을 이용한 정량검사법과 비교하여 신속검사인 ICA법의 민감도를 평가하고자 하였다. 대학병원에 간염검사를 의뢰한 검체 중 CIA법에서 양성 및 음성으로 나온 120 검체를 선정하여 ICA법으로 분석하였다. ICA법과 CIA법의 일치율은 항원 97%와 항체 90%로 나타났다. 항원검사의 ICA법 민감도, 특이도, 양성예측도, 음성예측도는 각각 97%, 100%, 100% 및 96.8%로 나타났으며, 항체검사는 각각 90%, 93.3%, 93.1% 및 90.3%로 나타났다. ICA법을 임상에서 사용 시 결과판독에 주의가 필요하며, 낮은 역가의 경우 검출되지 않는 제한점이 있으므로 예민도가 높은 다른 검사법을 이용하여 이중검사를 시행해야 할 것으로 사료된다.

Keywords

References

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