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. Author manuscript; available in PMC: 2023 Aug 1.
Published in final edited form as: Ultrasound Med Biol. 2022 Jun 4;48(8):1663–1671. doi: 10.1016/j.ultrasmedbio.2022.04.218

Figure 1: Surgical histopathology and cytology.

Figure 1:

(a) Of the 108 patients recruited to the study, one with Bethesda Category IV cytology without surgical histopathology was excluded prior to data analysis. The remaining 107 patients with 113 thyroid nodules all had shear wave elastography data obtained using the ultrasound system Supersonic Imagine Aixplorer (SSI, Aix-en-Provence, France) that was equipped with a 4–15 MHz linear array transducer. Of the 28 nodules without surgical histopathology, 27 were benign based on Bethesda Category II cytology and/or clinical follow-up and one patient had a malignant nodule (Bethesda Category VI). There were 10 nodules with indeterminate FNA cytology, (b) 4 Bethesda Category III cytology (Atypica of Undetermined Significance or Follicular Lesion of Undetermined Significance) and (c) 6 Bethesda Category IV cytology (Follicular Neoplasm or Suspicious for a Follicular Neoplasm), with surgical histopathology. Benign nodules included both follicular adenomas and Hurthle cell adenomas. FNA: fine-needle aspiration.