Journal of the Korean Society of Radiology (대한영상의학회지)

The Korean Society of Radiology (대한영상의학회)
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Radiologic Review of an Outbreak of the Pandemic (H1N1) 2009 Virus Infection at a University Hospital in Seoul, Korea

서울 소재 한 대학 병원에서의 2009년 신종플루 대유행의 영상의학적 고찰

  • Choi, Seung-Hee (Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine) ;
  • Kang, Eun-Young (Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine) ;
  • Kim, Jang-Su (Department of Laboratory Medicine, Korea University Guro Hospital, Korea University College of Medicine) ;
  • Kim, Yoon-Kyung (Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine) ;
  • Woo, Ok-Hee (Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine) ;
  • Yong, Hwan-Seok (Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine) ;
  • Oh, Yu-Whan (Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine)
  • 최승희 (고려대의과대학부속 구로병원 영상의학과) ;
  • 강은영 (고려대의과대학부속 구로병원 영상의학과) ;
  • 김장수 (고려대의과대학부속 구로병원 진단검사의학과) ;
  • 김윤경 (고려대의과대학부속 구로병원 영상의학과) ;
  • 우옥희 (고려대의과대학부속 구로병원 영상의학과) ;
  • 용환석 (고려대의과대학부속 구로병원 영상의학과) ;
  • 오유환 (고려대의과대학부속 구로병원 영상의학과)
  • Published : 2011.04.01
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Abstract

Purpose: To assess the frequency of radiologic abnormalities and investigate the radiologic findings of patients with a pandemic (H1N1) 2009 virus infection at a University hospital in Seoul, Korea. Materials and Methods: In November 2009, 9,427 patients were tested for pandemic (H1N1) 2009 virus and 3,849 (41%) were positive. Among them, only 338 (9%) underwent chest radiographs and 13 (0.3%) received chest CT. Two radiologists retrospectively reviewed all the radiologic images. Results: Among the 338 patients, 287 (85%) were normal and 51 (15%) showed abnormalities. The frequency of abnormalities was significantly higher in children (41/212=19%) than in adults (10/126=8%) (p = 0.005). Of them, 42 (82%) patients had airspace pneumonia, whereas the remaining patients showed a bronchopneumonia pattern. Unilateral (82%) involvement was more common than bilateral (18%) involvement. Among patients who received chest CT, 12 (92%) showed abnormalities, with bilateral (67%) and random (75%) involvement being more common. Ground-glass opacity (67%) and centrilobular nodules (58%) were the more common CT findings. Conclusion: Only a small number of patients were critically ill enough to undergo further radiologic evaluation as a result of pandemic (H1N1) 2009 virus infection, and most patients had normal chest radiographs. Unilateral airspace pneumonia was the most common abnormality in patients infected with pandemic (H1N1) 2009 virus.

목적: 서울소재 한 대학 병원에서의 2009년 신종플루의 감염 빈도, 감염자에서 영상의학 검사가 필요한 정도, 이상 소견을 보이는 빈도, 그리고 그 소견을 알아보고자 하였다. 대상과 방법: 2009년 신종플루 대유행기인 11월 한달간 9,427명이 내원하여 바이러스 검사를 받았고 그 중 3,849명(41%)에서 양성이었다. 3,849명의 감염자 중 338명(9%)만이 흉부X선사진을 촬영하였고 13명(0.3%)이 흉부 CT를 시행하였다. 두 명의 영상의학과 의사가 영상 검사를 후향적으로 검토하였다.결과: 흉부X선사진을 촬영한 338명 중, 287명(85%)은 정상이었고, 51명(15%)만이 비정상이었다. 흉부X선사진에서 비정상을 보인 빈도는 어린이에서(41/212=19%) 어른보다(10/126=8%) 높았다(p = 0.005). 비정상 소견을 보인 51명 중 42명(82%)은 폐포공간폐렴 형태를, 나머지는 기관지폐렴 형태를 보였고, 82%가 일측성 분포였다. 한편, 흉부CT를 시행한 13명 중 12명(92%)이 비정상이었고, 양측성(67%) 그리고 임의(75%) 분포가 흔했다. 또한, 젖빛유리음영(67%)과 중심소엽성결절(58%)이 가장 흔한 CT소견이었다. 결론: 2009년 신종플루 대유행시에, 소수의 감염자에서만 영상의학 검사가 필요하였고, 흉부X선사진을 촬영한 감염자의 대부분은 정상소견이었다. 흉부X선사진에서 다른 폐감염과 유사한 일측성 폐포공간폐렴이 가장 흔한 소견이었다.

Keywords

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