The diagnostic performance of shear wave speed (SWS) imaging for thyroid nodules with elasticity modulus and SWS measurement.
To evaluate the diagnostic performance of a new technique of shear wave speed (SWS) imaging for the diagnosis of thyroid nodule with elasticity modulus and SWS measurement. 322 thyroid nodules in 322 patients (216 benign nodules, 106 malignant nodules) were included in this study. All the nodules received conventional ultrasound (US) and SWS imaging (Aplio500, Toshiba Medical Systems, Japan) before fine-needle aspiration (FNA) and/or surgery. The values of E-max and E-mean with elastic modulus (61.27 ± 36.31 kPa and 31.89 ± 19.11 kPa) or SWS (4.45 ± 1.49 m/s and 3.26 ± 2.71 m/s) in malignant nodules were significantly higher than those in benign lesions (29.18 ± 18.62 kPa and 15.85 ± 6.96 kPa, or 2.98 ± 0.85 m/s and 2.19 ± 0.42 m/s, all P < 0.001). No significant differences in area under the curve (AUC) between the SWS imaging parameters were found (all P > 0.05). In multivariate logistic regression analysis, E-max (m/s) with SWS was identified to be the strongest independent predictor for malignant nodules (odds ratio [OR] = 16.760), followed by poorly-defined margin (OR = 7.792), taller-than-wide shape (OR = 3.160), micro-calcification (OR = 2.422), and E-max (kPa) with elastic modulus (OR = 0.914). The AUC was 0.813 for E-max with SWS (m/s) and 0.796 for E-max with elastic modulus (kPa). With cut-off SWS value of 3.52 m/s in E-max, sensitivity of 69.8%, specificity of 81.5%, and accuracy of 77.6% were achieved. SWS imaging is a valuable tool in predicting thyroid malignancy. E-max with SWS measurement is the strongest independent predictor for thyroid malignancy.
['Wang|Dan|D|', 'He|Ya-Ping|YP|', 'Zhang|Yi-Feng|YF|', 'Liu|Bo-Ji|BJ|', 'Zhao|Chong-Ke|CK|', 'Fu|Hui-Jun|HJ|', 'Wei|Qing|Q|', 'Xu|Hui-Xiong|HX|']
D000328:Adult D000368:Aged D019540:Area Under Curve D044963:Biopsy, Fine-Needle D055119:Elastic Modulus D054459:Elasticity Imaging Techniques D005260:Female D006801:Humans D007090:Image Interpretation, Computer-Assisted D016015:Logistic Models D008297:Male D008875:Middle Aged D015588:Observer Variation D012372:ROC Curve D012189:Retrospective Studies D012680:Sensitivity and Specificity D016606:Thyroid Nodule D018615:Ultrasonography, Doppler, Color D055815:Young Adult
thyroid nodule elastic modulus ultrasound elastography shear wave speed imaging