Tomoo Jikuzono1,2, Osamu Ishibashi3,2, Shoko Kure4, Chiaki Itoh5, Tetsu Yamada6, Iwao Sugitani1. 1. Department of Endocrine Surgery, Nippon Medical School, Tokyo, Japan. 2. Laboratory of Biological Macromolecules, Department of Applied Life Sciences, Graduate School of Life & Environmental Sciences, Osaka Prefecture University, Osaka, Japan. 3. Department of Endocrine Surgery, Nippon Medical School, Tokyo, Japan; ishibashi@biochem.osakafu-u.ac.jp. 4. Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo, Japan. 5. Dynacom Company, Ltd, Chiba, Japan. 6. Department of Endocrine Surgery, Kanaji Thyroid Hospital, Tokyo, Japan.
Abstract
BACKGROUND/AIM: Shear wave measurement (SWM) is a new elastography modality that quantifies the shear wave velocity (Vs) and the percentage of the net effective shear wave velocity (VsN). This study examined whether these parameters could be used to differentiate between malignant and benign thyroid tumors. PATIENTS AND METHODS: The study of SWM enrolled 111 patients (133 nodules) who underwent thyroid surgery. Overall, 61 nodules were diagnosed as benign and 72 as malignant, of which 68 nodules were diagnosed as papillary thyroid carcinoma (PTC) and 4 as follicular thyroid carcinoma (FTC). RESULTS: A preoperative SWM revealed that Vs was significantly higher and VsN significantly lower in the PTC compared to the benign nodules. The VsN of FTC was significantly lower than that of follicular adenoma. Multivariate analysis revealed that VsN significantly correlated with nodule malignancy. CONCLUSION: SWM parameters, especially VsN, can potentially differentiate between benign and malignant thyroid nodules non-invasively.
BACKGROUND/AIM: Shear wave measurement (SWM) is a new elastography modality that quantifies the shear wave velocity (Vs) and the percentage of the net effective shear wave velocity (VsN). This study examined whether these parameters could be used to differentiate between malignant and benign thyroid tumors. PATIENTS AND METHODS: The study of SWM enrolled 111 patients (133 nodules) who underwent thyroid surgery. Overall, 61 nodules were diagnosed as benign and 72 as malignant, of which 68 nodules were diagnosed as papillary thyroid carcinoma (PTC) and 4 as follicular thyroid carcinoma (FTC). RESULTS: A preoperative SWM revealed that Vs was significantly higher and VsN significantly lower in the PTC compared to the benign nodules. The VsN of FTC was significantly lower than that of follicular adenoma. Multivariate analysis revealed that VsN significantly correlated with nodule malignancy. CONCLUSION: SWM parameters, especially VsN, can potentially differentiate between benign and malignant thyroid nodules non-invasively.
Keywords:
Shear wave measurement; follicular thyroid carcinoma; papillary thyroid carcinoma; the percentage of the net amount of effective shear wave velocity; thyroid nodules
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