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KMID : 0357520220450040341
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Journal of Radiological Science and Technology
2022 Volume.45 No. 4 p.341 ~ p.346
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Usefulness of Color-overlay Pattern of Thyroid Elastic Ultrasonography
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Park Ji-Yeon
Cho Pyong-Kon
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Abstract
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The color overlay pattern of thyroid shear wave elastography applied in this study distinguishes benign and malignant nodules based on the optimal cut-off value of 74.2 kPa. From august 2021 to september 2021, thyroid ultrasound and elastography were performed on 57 patients with thyroid lesions using an ultrasound device RS85 prestige (Samsung Medison, Korea) and a 2-14 MHz linear transducer. In addition, the results of classification by K-TIRADS for each thyroid nodule and the results of classification by color overlay pattern according to the kPa value of acoustic ultrasound were compared and analyzed. In the color overlay pattern, the results classified as 40 people from dark blue to light blue and 17 people from green to red were similar to the K-TIRADS category results, which were classified as 42 benign and 15 malignant. Between blue and light blue, benign, and between green and red, malignant. If the shear wave elastography method is applied before the fine-needle aspiration cytology of the thyroid nodule is performed, the differential diagnosis of thyroid tissue from benign and malignant can be predicted in advance, and it will help to reduce unnecessary invasive tests.
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KEYWORD
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Thyroid Ultrasonography, Shear Wave Elastography, Fine-needle Aspiration Cytology, Thyroid Nodules, K-TIRADS
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