The utility of strain elastography in differentiation between healthy thyroid parenchyma and residual/recurrent thyroid parenchyma disorders

Objectives: This study is designed to evaluate the utility of strain elastography in the differentiation between healtly thyroid parenchyma and residual/recurrent thyroid parenchyma after partial thyroidectomy. Methods: Gray-scale ultrasonography (B-mode US) and strain elastography were performed in patients who had undergone partial thyroidectomy due to benign thyroid diseases and volunteers as a control group without any throid disease. The elasticity scores and strain rate values of thyroid parenchyma were obtained in two groups and compared. The strain elastography of the patient and control groups were analyzed with the Pearson Chi-Square test. Strain rates for both groups were compared with the Manny-Whitney U test. Ethical approval and permissions were obtained from legally authorized representatives and patients. Results: There were 94 cases in total, 47 cases (4 male, 43 female; mean age: 51 ± 12.9 years, ranging between 25-79) in the patient group and 47 cases (11 male, 36 female; mean age: 36.8 ± 11.5 years, ranging between 19-71) in the control group. The strain rate of the right (2.22 ± 1.9) and left thyroid lobe (1.9 ± 1.9) were significantly higher than control group (1.05 ± 0.6 and 0.8 ± 0.5, respectively; p = 0.002 and p = 0.043). Conclusions: The elasticity of thyroid parenchyma after partial thyroidectomy differs from healthy thyroid tissue, which may be helpful in differentiation between residual parenchymal changes in thyroid from malignant lesions with strain elastography.

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  • 1. Durgun Z, Yazıcı C, Inan AO. [Thyroid hormones and diseases]. Akdeniz Spor Bilimleri Dergisi 2019;2:28-40. [Article in Turkish]
  • 2. Thyroid Study Group, Society of Endocrinology and Metabolism of Turkey. Guideline of Throid Diseases and Treatment. Turkey Clinics Publication, 4. Edition, April 2019. Ankara –Turkey.
  • 3. Cetin M. [Ultrasonographic diagnosis in throid diseases]. SDU Tıp Fakültesi Dergisi. 2009;7:26-9. [Article in Turkish]
  • 4. Dudea SM, Botar-Jid C. Ultrasound elastography in thyroid disease. Med Ultrason 2015;17:74-96.
  • 5. Hefeda MM. Value of the new elastography technique using acoustic radiation force impulse in differentiation between Hashimoto’s thyroiditis and Graves’ disease. J Clin Imaging Sci 2019;9:17.
  • 6. Kaliszewski K, Strutyńska-Karpińska M, Zubkiewicz-Kucharska A, Wojtczak B, Domosławski P, Balcerzak W, et. al. Should the prevalence of incidental thyroid cancer determine the extent of surgery in multinodular goiter? PloS One 2016;11:e0168654.
  • 7. Cerit MN, Oktar SO. Lenf Bezleri, Tükrük Bezleri ve Boyun Kitlelerinde Elastografi. Türk Radyoloji Seminerleri 2019;7:38-49.
  • 8. Akçakaya A, Koç B, Ferhatoğlu F. [Thyroid anatomy and surgical approach]. Okmeydanı Tıp Dergisi 2012;28(Suppl 1):1-9. [Article in Turkish]
  • 9. Shin JH, Han BK, Ko EY, Kang SS. Sonographic findings in the surgical bed thyroidectomy: comparison of recurrent tumors and nonrecurrent lesions. J Ultrasound Med 2007;26:1359-66.
  • 10. Frates MC. Ultrasound in recurrent thyroid disease. Otolaryngol Clin N Am 2008;41:1107-16.
  • 11. Cantisani V, Lodise P, Grazhdani H, Mancuso E, Maggini E, Di Rocco G, et al. Ultrasound elastography in the evaluation of thyroid pathology. Current status. Eur J Radiol 2014;83:420-8.
  • 12. Menzilcioglu MS, Duymus M, Gungor G, Citil S, Sahin T, Boysan SN, et al. The value of real-time ultrasound elastography in chronic autoimmune thyroiditis. Br J Radiol 2014;87:20140604.
  • 13. Menzilcioglu MS, Duymus M, Avcu S. Sonographic elastography of the thyroid gland. Pol J Radiol 2016;81:152-6.
  • 14. Yang Z, Zhang H, Wang K, Cui G, Fu F. Assessment of diffuse thyroid disease by strain ratio in ultrasound elastography. Ultrasound Med Biol 2015;41:2884-9.
  • 15. Yurttutan N, Gungor G, Bilal N, Kizildag B, Baykara M, Sarica MA. Interpretation of thyroid glands in a group of healthy children: real-time ultrasonography elastography study. J Pediatr Endocrinol Metab 2016;29:933-7.
  • 16. Gode S, Turhal G, Kismali E, Ozturk K, Midilli R. A novel method for comparison of tissue fibrosis after inferior turbinate surgery: ultrasound elastography. Am J Rhinol Allergy 2015;29:e33-6.
  • 17. Korkusuz H, Happel C, Klebe J, Ackermann H, Grünwald F. Diagnostic accuracy of elastography and scintigraphic imaging after thermal microwave ablation of thyroid nodules. Rofo 2015;187:353-9.