2021 Korean Thyroid Imaging Reporting and Data System Calculator
결절의 초음파 구성을 선택하세요. (Select ultrasound composition of the nodule.)
정상 갑상선 실질과 비교하세요. (Compare to normal thyroid parenchyma.)
해당되는 소견을 모두 선택하세요. 없으면 다음 단계로 진행하세요. (Select all that apply.)
해당되는 항목이 있으면 선택하세요. (Check if applicable.)
크기에 관계없이 생검이 권고되는 경우 (Biopsy indicated regardless of size):
FNA 세포검사 결과와 K-TIRADS 분류에 따른 관리 권고 (Based on Table 5, 2021 K-TIRADS)
| FNA 결과 (Result) | K-TIRADS 2–3 | K-TIRADS 4 | K-TIRADS 5 |
|---|---|---|---|
| 비진단적 (Nondiagnostic) |
반복 FNA 또는 추적 관찰 Repeat FNA or follow-up |
반복 FNA 또는 CNB Repeat FNA or CNB |
반복 FNA 또는 CNB Repeat FNA or CNB |
| 양성 (Benign) |
K-TIRADS에 따른 추적 Follow-up per K-TIRADS |
K-TIRADS에 따른 추적 Follow-up per K-TIRADS |
1년 이내 반복 FNA/CNB Repeat FNA or CNB within 1 year |
| 비정형 (AUS/FLUS) |
반복 FNA Repeat FNA |
반복 FNA 또는 CNB Repeat FNA or CNB |
반복 FNA/CNB 또는 진단적 수술 Repeat FNA/CNB or diagnostic surgery |
| 여포 종양 / 의심 (FN/SFN) |
진단적 수술 또는 분자검사 Diagnostic surgery or molecular testing |
진단적 수술 또는 분자검사 Diagnostic surgery or molecular testing |
진단적 수술 Diagnostic surgery |
| 악성 의심 (Suspicious for malignancy) |
수술 Surgery |
수술 Surgery |
수술 Surgery |
| 악성 (Malignant) |
수술 Surgery |
수술 Surgery |
수술 Surgery |
CNB = 중심부 바늘 생검 (Core needle biopsy). FNA 반복은 1~3개월 후 시행 권장.
AUS/FLUS = 의의불명의 비정형 / 여포 병변 (Atypia/Follicular lesion of undetermined significance).
FN/SFN = 여포 종양 / 여포 종양 의심 (Follicular neoplasm / Suspicious for follicular neoplasm).
Extrathyroidal Extension — Ultrasound Criteria Reference
2021 K-TIRADS 가이드라인의 근거가 되는 주요 참고문헌 및 원문 자료
1. 2021 K-TIRADS Consensus Statement (Primary Guideline)
Ha EJ, Chung SR, Na DG, et al. 2021 Korean thyroid imaging reporting and data system and imaging-based management of thyroid nodules: Korean Society of Thyroid Radiology consensus statement and recommendations. Korean J Radiol 2021;22:2094-2123.
https://doi.org/10.3348/kjr.2021.0713
2. 2021 K-TIRADS Review Article
Jung SL. 2021 Korean Thyroid Imaging Reporting and Data System (2021-K-TIRADS) and imaging-based management of thyroid nodules. Korean J Med 2022;97:292-302.
https://doi.org/10.3904/kjm.2022.97.5.292
3. 2016 KSThR Revised Guidelines
Shin JH, Baek JH, Chung J, et al. Ultrasonography diagnosis and imaging-based management of thyroid nodules: revised Korean Society of Thyroid Radiology consensus statement and recommendations. Korean J Radiol 2016;17:370-395.
https://doi.org/10.3348/kjr.2016.17.3.370
4. Original KSThR Guidelines (2011)
Moon WJ, Baek JH, Jung SL, et al. Ultrasonography and the ultrasound-based management of thyroid nodules: consensus statement and recommendations. Korean J Radiol 2011;12:1-14.
https://doi.org/10.3348/kjr.2011.12.1.1
5. Multicenter Validation Study
Chung SR, Ahn HS, Choi YJ, et al. Diagnostic performance of the modified Korean thyroid imaging reporting and data system for thyroid malignancy: a multicenter validation study. Korean J Radiol 2021;22:1579-1586.
https://doi.org/10.3348/kjr.2020.1498
6. Diagnostic Performance Comparison
Ha EJ, Na DG, Baek JH, Sung JY, Kim JH, Kang SY. US fine-needle aspiration biopsy for thyroid malignancy: diagnostic performance of seven society guidelines applied to 2000 thyroid nodules. Radiology 2018;287:893-900.
https://doi.org/10.1148/radiol.2018171592
7. Hypoechogenicity Risk Stratification
Lee JY, Na DG, Yoon SJ, et al. Ultrasound malignancy risk stratification of thyroid nodules based on the degree of hypoechogenicity and echotexture. Eur Radiol 2020;30:1653-1663.
https://doi.org/10.1007/s00330-019-06527-8
Official KSThR Resources
대한갑상선영상의학회 (Korean Society of Thyroid Radiology) — K-TIRADS 가이드라인 및 임상 자료
https://www.thyroidimaging.kr
Korean Journal of Radiology: 2021 K-TIRADS 전문 (Full-text open access)
View Full Article at KJR Online