A Survey of Institutions with Sixteen Detector-Rows or More CT Scanners for the Introduction of National Lung Cancer Screening Program Using Low-Dose Chest CT

Jae Gu Oh, Sang Hyun Paik, Beom Suck Kim, Jae Myeong Lee, Jin Mo Goo
2017 Journal of the Korean Society of Radiology  
서론 저선량 흉부 CT는 2 mSv의 유효선량만을 조사 받는 영상 검사로, 이를 이용할 경우 일반 흉부 CT가 평균 7 mSv의 유효 선량을 조사 받는 것과 비교하여 보았을 때, 방사선 노출량이 절반 이하로 감소하게 된다(1). 이러한 저선량 흉부 CT를 이용한 선별검사에서 발견된 폐암 의 84~93%가 제1병기였으며, National Lung Screening Trial 연구에 의하면 이러한 저선량 흉부 CT가 고위험군에서의 폐암 사망률을 20% 이상 감소시키는 것으로 나타났다(2-4). 또한 Bach 등(5)은 저선량 흉부 CT에 대한 무작위연구 8개와 코호 트연구 13개를 모아 분석하였는데, 저선량 흉부 CT 선별검사 를 받은 군에서 대조군에 비해 폐암 사망률이 유의하게 적게 나타났다. 이러한 배경을 바탕으로 국내에서는 2014년에 폐암검진 권고 안 제정위원회에서 의료인들에게 폐암검진의 표준지침과 검진 의 효과 및 위해에 대한 정보를 제공하는 것을 목적으로 폐암 검진 권고안을
more » ... 발표하였다. 이 권고안에서는 30갑년 이상의 흡 Purpose: To survey medical institutions in Korea that conduct chest low-dose computed tomography (LDCT) scan prior to introduction of the national lung cancer screening (LCS) project. Materials and Methods: From July-October 2016, a survey was conducted in 366 institutions that use CT scanner with 16 detector-rows or more. After explaining the purpose of this study to personnel of institutions or health care centers via phone, an online survey was conducted by sending a questionnaire link to personnel through e-mail or text message. Results: Among 366 medical institutions, 282 responded to conduct LDCT scan for LCS. The most frequently used CT section thickness was 5 mm and only 29 institutions comply with Korean guidelines for LCS. The number of institutions that employ a full time radiologist was 330. LDCT scan protocols and CT radiation dose structured reporting system were established in 305 and 302 institutions, respectively. Fifty-nine institutions knew about Lung-RADS and only 14 used it. Conclusion: Many of the institutions with 16 detector-row or more CT scanners did not meet Korean guidelines for LSC. Appropriate education and promotion is needed to improve and sustain the quality of LDCT for LCS. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
doi:10.3348/jksr.2017.77.6.404 fatcat:xhvxcmfrgvfqjhre4qbumlwdnm