Korean Journal of Radiology

The Korean Society of Radiology (대한영상의학회)
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2021 Korean Thyroid Imaging Reporting and Data System and Imaging-Based Management of Thyroid Nodules: Korean Society of Thyroid Radiology Consensus Statement and Recommendations

  • Eun Ju Ha (Department of Radiology, Ajou University School of Medicine) ;
  • Sae Rom Chung (Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Dong Gyu Na (Department of Radiology, GangNeung Asan Hospital, University of Ulsan College of Medicine) ;
  • Hye Shin Ahn (Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine) ;
  • Jin Chung (Department of Radiology, Ewha Womans University School of Medicine) ;
  • Ji Ye Lee (Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Jeong Seon Park (Department of Radiology, Hanyang University College of Medicine, Hanyang University Hospital) ;
  • Roh-Eul Yoo (Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Jung Hwan Baek (Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Sun Mi Baek (Department of Radiology, Haeundae Sharing and Happiness Hospital) ;
  • Seong Whi Cho (Department of Radiology, Kangwon National University Hospital) ;
  • Yoon Jung Choi (Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine) ;
  • Soo Yeon Hahn (Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • So Lyung Jung (Department of Radiology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea) ;
  • Ji-hoon Kim (Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Seul Kee Kim (Department of Radiology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School) ;
  • Soo Jin Kim (Department of Radiology, New Korea Hospital) ;
  • Chang Yoon Lee (Department of Radiology, Research Institute and Hospital, National Cancer Center) ;
  • Ho Kyu Lee (Department of Radiology, Jeju National University) ;
  • Jeong Hyun Lee (Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Young Hen Lee (Department of Radiology, Ansan Hospital, Korea University College of Medicine) ;
  • Hyun Kyung Lim (Department of Radiology, Soonchunhyang University Seoul Hospital) ;
  • Jung Hee Shin (Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Jung Suk Sim (Department of Radiology, Withsim Clinic) ;
  • Jin Young Sung (Department of Radiology and Thyroid Center, Daerim St. Mary's Hospital) ;
  • Jung Hyun Yoon (Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine) ;
  • Miyoung Choi (Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency)
  • Received : 2021.09.09
  • Accepted : 2021.09.10
  • Published : 2021.12.01
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Abstract

Incidental thyroid nodules are commonly detected on ultrasonography (US). This has contributed to the rapidly rising incidence of low-risk papillary thyroid carcinoma over the last 20 years. The appropriate diagnosis and management of these patients is based on the risk factors related to the patients as well as the thyroid nodules. The Korean Society of Thyroid Radiology (KSThR) published consensus recommendations for US-based management of thyroid nodules in 2011 and revised them in 2016. These guidelines have been used as the standard guidelines in Korea. However, recent advances in the diagnosis and management of thyroid nodules have necessitated the revision of the original recommendations. The task force of the KSThR has revised the Korean Thyroid Imaging Reporting and Data System and recommendations for US lexicon, biopsy criteria, US criteria of extrathyroidal extension, optimal thyroid computed tomography protocol, and US follow-up of thyroid nodules before and after biopsy. The biopsy criteria were revised to reduce unnecessary biopsies for benign nodules while maintaining an appropriate sensitivity for the detection of malignant tumors in small (1-2 cm) thyroid nodules. The goal of these recommendations is to provide the optimal scientific evidence and expert opinion consensus regarding US-based diagnosis and management of thyroid nodules.

Keywords

Acknowledgement

This study was supported by a grant by 2021 Clinical Practice Guideline Research Fund by Korean Society of Radiology & Korean Society of Thyroid Radiology.

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