Thyroid nodules may be hyperplastic or neoplastic, with most due to benign hyperplastic changes in architecture and benign follicular adenomas; only a small percentage are malignant. A systematic approach to no
Thyroid ultrasound is done in some patients to evaluate the size of the thyroid and the number, composition (solid vs. cystic), and dimensions of the thyroid nodule; solid thyroid nodules have a higher incidence of malignancy, but cystic nodules can also be malignant. • The introduction of...
Textural features are obtained from the pyramid at different levels and with different filters. ReliefF method is used for feature selection. Support vector machine is used to classify the thyroid nodule as benign or malignant, and its performance is evaluated using accuracy, sensitivity, specificit...
During the analysis of ultrasound images, the boundaries of the nodules were defined by two thyroid specialists (K. Y. Chen and M. H. Wu) without knowledge of the FNA cytology or surgical pathology results. To select the references for comparison with the nodule echogenicity20, the regions of...
et al. Risk of malignancy in nonpalpable thyroid nodules: predictive value of ultrasound and color-Doppler features. J. Clin. Endocrinol. Metab. 87, 1941–1946 (2002). Article CAS PubMed Google Scholar Greaves, T. S. et al. Follicular lesions of thyroid: a 5-year fine-needle aspiration...
We, thus, compared nodule features in benign and malignant cases. Patients with thyroid cancer were more likely to present with palpable lymph nodes and compressive symptoms. Both ultrasonography and FNAB proved useful in patients with euthyroidism. The first provided an initial characterization of ...
Metreweli, Clinical significance of the comet-tail artifact in thyroid ultrasound. J. Clin. Ultrasound 24(3), 129–133 (1996) Article CAS PubMed Google Scholar D.T. Ginat, D. Butani, E.J. Giampoli, N. Patel, V. Dogra, Pearls and pitfalls of thyroid nodule sonography and fine-...
Interobserver agreement in assessing the sonographic and elastographic features of malignant thyroid nodules. Am J Roentgenol. 2009;193(5):W416–23. CrossRef Wong KT, Ahuja AT. Ultrasound of thyroid cancer. Cancer Imaging. 2005;5(1):157–66. CrossRef Murakami T. Ultrasonography. In: ...
Results. There were 68 benign and 2 malignant nodules in a population of 63 female and 7 male patients. The mean benign nodule size was 2.9 cm; 60% were solid; 54% were hypoechoic; 59% were microlobulated or macrolobulated; 47% had central vascularity; 24% contained calcifications; and ...
In one case, it was noted for the first time during the 3-year follow-up ultrasound study. In the other patient, the malignant nodule was never visualized sonographically. It was discovered incidentally after thyroidectomy prompted by changes (suspicious ultrasound features, indeterminate cytology) ...