Comparison of Four Ultrasonography-Based Risk Stratification Systems in Thyroid Nodules with Nondiagnostic/Unsatisfactory Cytology: A Real-World Study

We compared American Thyroid Association (ATA) guidelines, Korean (K)-Thyroid Imaging, Reporting and Data Systems (TIRADS), EU-TIRADS, and American College of Radiology (ACR) TIRADS in diagnosing malignancy for thyroid nodules with nondiagnostic/unsatisfactory cytology. Among 1143 nondiagnostic/unsa...

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Main Authors: You-Bin Lee, Young-Lyun Oh, Jung-Hee Shin, Sun-Wook Kim, Jae-Hoon Chung, Yong-Ki Min, Soo-Yeon Hahn, Tae-Hyuk Kim
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/8/1948
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author You-Bin Lee
Young-Lyun Oh
Jung-Hee Shin
Sun-Wook Kim
Jae-Hoon Chung
Yong-Ki Min
Soo-Yeon Hahn
Tae-Hyuk Kim
author_facet You-Bin Lee
Young-Lyun Oh
Jung-Hee Shin
Sun-Wook Kim
Jae-Hoon Chung
Yong-Ki Min
Soo-Yeon Hahn
Tae-Hyuk Kim
author_sort You-Bin Lee
collection DOAJ
description We compared American Thyroid Association (ATA) guidelines, Korean (K)-Thyroid Imaging, Reporting and Data Systems (TIRADS), EU-TIRADS, and American College of Radiology (ACR) TIRADS in diagnosing malignancy for thyroid nodules with nondiagnostic/unsatisfactory cytology. Among 1143 nondiagnostic/unsatisfactory aspirations from April 2011 to March 2016, malignancy was detected in 39 of 89 excised nodules. The minimum malignancy rate was 7.82% in EU-TIRADS 5 and 1.87–3.00% in EU-TIRADS 3–4. In the other systems, the minimum malignancy rate was 14.29–16.19% in category 5 and ≤3% in the remaining categories. Although the EU-TIRADS category ≥ 5 exhibited the highest positive likelihood ratio (LR) of only 2.214, category ≥ 5 in the other systems yielded the highest positive LR of >5. Receiver operating characteristic (ROC) curves of all systems to predict malignancy were located statistically above the diagonal nondiscrimination line (P for ROC curve: EU-TIRADS, 0.0022; all others, 0.0001). The areas under the ROC curve (AUCs) were not significantly different among the four systems. The ATA guidelines, K-TIRADS, and ACR TIRADS may be useful to guide management for nondiagnostic/unsatisfactory nodules. The EU-TIRADS, although also useful, exhibited inferior performance in predicting malignancy for nondiagnostic/unsatisfactory nodules in Korea, an iodine-sufficient area.
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spelling doaj.art-72e48f4d500f465a9e868f574258a6372023-11-21T16:05:24ZengMDPI AGCancers2072-66942021-04-01138194810.3390/cancers13081948Comparison of Four Ultrasonography-Based Risk Stratification Systems in Thyroid Nodules with Nondiagnostic/Unsatisfactory Cytology: A Real-World StudyYou-Bin Lee0Young-Lyun Oh1Jung-Hee Shin2Sun-Wook Kim3Jae-Hoon Chung4Yong-Ki Min5Soo-Yeon Hahn6Tae-Hyuk Kim7Samsung Medical Center, Department of Medicine, Division of Endocrinology and Metabolism, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, KoreaSamsung Medical Center, Department of Pathology, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, KoreaSamsung Medical Center, Department of Radiology, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, KoreaSamsung Medical Center, Department of Medicine, Division of Endocrinology and Metabolism, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, KoreaSamsung Medical Center, Department of Medicine, Division of Endocrinology and Metabolism, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, KoreaSamsung Medical Center, Department of Medicine, Division of Endocrinology and Metabolism, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, KoreaSamsung Medical Center, Department of Radiology, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, KoreaSamsung Medical Center, Department of Medicine, Division of Endocrinology and Metabolism, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, KoreaWe compared American Thyroid Association (ATA) guidelines, Korean (K)-Thyroid Imaging, Reporting and Data Systems (TIRADS), EU-TIRADS, and American College of Radiology (ACR) TIRADS in diagnosing malignancy for thyroid nodules with nondiagnostic/unsatisfactory cytology. Among 1143 nondiagnostic/unsatisfactory aspirations from April 2011 to March 2016, malignancy was detected in 39 of 89 excised nodules. The minimum malignancy rate was 7.82% in EU-TIRADS 5 and 1.87–3.00% in EU-TIRADS 3–4. In the other systems, the minimum malignancy rate was 14.29–16.19% in category 5 and ≤3% in the remaining categories. Although the EU-TIRADS category ≥ 5 exhibited the highest positive likelihood ratio (LR) of only 2.214, category ≥ 5 in the other systems yielded the highest positive LR of >5. Receiver operating characteristic (ROC) curves of all systems to predict malignancy were located statistically above the diagonal nondiscrimination line (P for ROC curve: EU-TIRADS, 0.0022; all others, 0.0001). The areas under the ROC curve (AUCs) were not significantly different among the four systems. The ATA guidelines, K-TIRADS, and ACR TIRADS may be useful to guide management for nondiagnostic/unsatisfactory nodules. The EU-TIRADS, although also useful, exhibited inferior performance in predicting malignancy for nondiagnostic/unsatisfactory nodules in Korea, an iodine-sufficient area.https://www.mdpi.com/2072-6694/13/8/1948thyroidfine-needle aspirationnondiagnosticunsatisfactorythyroid imagingreporting and data system (TIRADS)
spellingShingle You-Bin Lee
Young-Lyun Oh
Jung-Hee Shin
Sun-Wook Kim
Jae-Hoon Chung
Yong-Ki Min
Soo-Yeon Hahn
Tae-Hyuk Kim
Comparison of Four Ultrasonography-Based Risk Stratification Systems in Thyroid Nodules with Nondiagnostic/Unsatisfactory Cytology: A Real-World Study
Cancers
thyroid
fine-needle aspiration
nondiagnostic
unsatisfactory
thyroid imaging
reporting and data system (TIRADS)
title Comparison of Four Ultrasonography-Based Risk Stratification Systems in Thyroid Nodules with Nondiagnostic/Unsatisfactory Cytology: A Real-World Study
title_full Comparison of Four Ultrasonography-Based Risk Stratification Systems in Thyroid Nodules with Nondiagnostic/Unsatisfactory Cytology: A Real-World Study
title_fullStr Comparison of Four Ultrasonography-Based Risk Stratification Systems in Thyroid Nodules with Nondiagnostic/Unsatisfactory Cytology: A Real-World Study
title_full_unstemmed Comparison of Four Ultrasonography-Based Risk Stratification Systems in Thyroid Nodules with Nondiagnostic/Unsatisfactory Cytology: A Real-World Study
title_short Comparison of Four Ultrasonography-Based Risk Stratification Systems in Thyroid Nodules with Nondiagnostic/Unsatisfactory Cytology: A Real-World Study
title_sort comparison of four ultrasonography based risk stratification systems in thyroid nodules with nondiagnostic unsatisfactory cytology a real world study
topic thyroid
fine-needle aspiration
nondiagnostic
unsatisfactory
thyroid imaging
reporting and data system (TIRADS)
url https://www.mdpi.com/2072-6694/13/8/1948
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