tailieunhanh - Diagnostic value of ultrasound elastography in thyroid cancer
jectives: To describe some clinical features of thyroid nodules, B-mode ultrasound, Doppler and strain elastography in order to differentiate benign from malignant tumors. Subjects and methods: 72 patients with thyroid nodules were performed clinical examination, 2D ultrasound, Doppler and strain elastography for qualitative assessment of the stiffness of thyroid tumors according to Asteria scores (2008) from ES1 - ES4, semi-quantitative calculating elasticity of the tumors (E2) and normal parenchyma (E1), strain ratio: SR = E2/E1, comparing with fine needle aspiration results. | Journal of military pharmaco-medicine no1-2019 DIAGNOSTIC VALUE OF ULTRASOUND ELASTOGRAPHY IN THYROID CANCER Hoang Dinh Anh1; Pham Thi Dieu Huong1; Nguyen Thi Hoang Oanh1 Nguyen Minh Hai1; Nguyen Thi Ha1; Nguyen Thi Ly1; Nguyen Vu Thang1 SUMMARY Objectives: To describe some clinical features of thyroid nodules, B-mode ultrasound, Doppler and strain elastography in order to differentiate benign from malignant tumors. Subjects and methods: 72 patients with thyroid nodules were performed clinical examination, 2D ultrasound, Doppler and strain elastography for qualitative assessment of the stiffness of thyroid tumors according to Asteria scores (2008) from ES1 - ES4, semi-quantitative calculating elasticity of the tumors (E2) and normal parenchyma (E1), strain ratio: SR = E2/E1, comparing with fine needle aspiration results. Results: The study group had mean age of ± , most of them were female. B-mode ultrasound: suspicious features of malignance: ill-defined margin (50%); tallerthan-wide (); micro-calcification (). Ultrasound elastography: of patients were classified as ES3 (hard) and ES4 (very hard); strain ratio SR: ± . A comparison of these results with post-operative biopsy showed that the highest sensitivity and specificity were obtained with SR ≥ . Conclusion: Qualitative assessment of the elasticity of lesions using color map in combination with calculating mean strain ratio of the whole lesion (SR ≥ ) would help to evaluate more exactly the stiffness of lesions on elastography to assess thyroid cancer. * Keywords: Thyroid tumor; Ultrasound elastography; Diagnosis. INTRODUCTION Thyroid nodule is the second most common endocrine disease, after diabetes. The prevalence of the disease diagnosed by physical examination only accounts for 4 - 7%. However, with ultrasound technology, the rate of thyroid nodule detection may reach to 19 - 67%. More than 90% of thyroid tumors are benign adenomas and cysts, only 5 - 10% are .
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