Jung Min Bae1, Soo Yeon Hahn2, Jung Hee Shin3, Eun Young Ko4. 1. Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University, School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea. Electronic address: jungmin1235.bae@samsung.com. 2. Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University, School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea. Electronic address: aurore47@naver.com. 3. Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University, School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea. Electronic address: helena35@hanmail.net. 4. Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University, School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea. Electronic address: ey.ko@samsung.com.
Abstract
OBJECTIVE: To investigate the inter-exam agreement for thyroid nodule between real-time ultrasonography (US) assessment and retrospective US interpretation and to compare the diagnostic performance between two methods by using the most recently published guidelines for the US-based management of thyroid nodules, the Korean Thyroid Imaging Reporting and Data System (K-TIRADS). METHODS: The study included 253 nodules in 238 patients for the inter-exam agreement and 201 nodules in 190 patients for the diagnostic performance. Real-time and retrospectively static US images were analyzed according to the US descriptors and final categories of the K-TIRADS. Inter-exam agreements between real-time US assessments and static US image interpretation were analyzed, as was the diagnostic performance of both methods. RESULTS: Overall inter-exam agreements were almost perfect for orientation (κ=0.868); and substantial for composition, spongiform appearance, echogenicity, shape, margin, calcification, and final K-TIRADS categories (κ=0.754, 0.786, 0.747, 0.670, 0.666, 0.778, and 0.754, respectively). Specifically, moderate agreements were observed for predominantly cystic composition and ill-defined margin. The overall diagnostic performances of both real-time US assessment and retrospective US interpretation using the K-TIRADS were comparable. CONCLUSIONS: Overall inter-exam agreements between real-time and retrospective US image interpretation for thyroid nodules using the K-TIRADS were equal or more than a substantial. Therefore, the use of K-TIRADS can provide consistent description and assessment for thyroid US regardless of the timing of interpretation.
OBJECTIVE: To investigate the inter-exam agreement for thyroid nodule between real-time ultrasonography (US) assessment and retrospective US interpretation and to compare the diagnostic performance between two methods by using the most recently published guidelines for the US-based management of thyroid nodules, the Korean Thyroid Imaging Reporting and Data System (K-TIRADS). METHODS: The study included 253 nodules in 238 patients for the inter-exam agreement and 201 nodules in 190 patients for the diagnostic performance. Real-time and retrospectively static US images were analyzed according to the US descriptors and final categories of the K-TIRADS. Inter-exam agreements between real-time US assessments and static US image interpretation were analyzed, as was the diagnostic performance of both methods. RESULTS: Overall inter-exam agreements were almost perfect for orientation (κ=0.868); and substantial for composition, spongiform appearance, echogenicity, shape, margin, calcification, and final K-TIRADS categories (κ=0.754, 0.786, 0.747, 0.670, 0.666, 0.778, and 0.754, respectively). Specifically, moderate agreements were observed for predominantly cystic composition and ill-defined margin. The overall diagnostic performances of both real-time US assessment and retrospective US interpretation using the K-TIRADS were comparable. CONCLUSIONS: Overall inter-exam agreements between real-time and retrospective US image interpretation for thyroid nodules using the K-TIRADS were equal or more than a substantial. Therefore, the use of K-TIRADS can provide consistent description and assessment for thyroid US regardless of the timing of interpretation.
Authors: Giovanni Guido Pompili; Silvia Tresoldi; Anna Ravelli; Alessandra Primolevo; Giovanni Di Leo; Gianpaolo Carrafiello Journal: Ultrasonography Date: 2018-01-06
Authors: Valeria Ramundo; Livia Lamartina; Rosa Falcone; Laura Ciotti; Cristiano Lomonaco; Marco Biffoni; Laura Giacomelli; Marianna Maranghi; Cosimo Durante; Giorgio Grani Journal: Ultrasonography Date: 2018-11-06