iScience (Nov 2023)

AI diagnosis of Bethesda category IV thyroid nodules

  • Jincao Yao,
  • Yanming Zhang,
  • Jiafei Shen,
  • Zhikai Lei,
  • Jing Xiong,
  • Bojian Feng,
  • Xiaoxian Li,
  • Wei Li,
  • Di Ou,
  • Yidan Lu,
  • Na Feng,
  • Meiying Yan,
  • Jinjie Chen,
  • Liyu Chen,
  • Chen Yang,
  • Liping Wang,
  • Kai Wang,
  • Jianhua Zhou,
  • Ping Liang,
  • Dong Xu

Journal volume & issue
Vol. 26, no. 11
p. 108114

Abstract

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Summary: Thyroid nodules are a common disease, and fine needle aspiration cytology (FNAC) is the primary method to assess their malignancy. For the diagnosis of follicular thyroid nodules, however, FNAC has limitations. FNAC can classify them only as Bethesda IV nodules, leaving their exact malignant status and pathological type undetermined. This imprecise diagnosis creates difficulties in selecting the follow-up treatment. In this retrospective study, we collected ultrasound (US) image data of Bethesda IV thyroid nodules from 2006 to 2022 from five hospitals. Then, US image-based artificial intelligence (AI) models were trained to identify the specific category of Bethesda IV thyroid nodules. We tested the models using two independent datasets, and the best AI model achieved an area under the curve (AUC) between 0.90 and 0.95, demonstrating its potential value for clinical application. Our research findings indicate that AI could change the diagnosis and management process of Bethesda IV thyroid nodules.

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