Virtual Touch Tissue Imaging on Acoustic Radiation Force Impulse Elastography

• DOI: 10.7863/ultra.33.4.585
• Publication Date: 2014-03-21T21:46:53Z
• Authors: Yi-Feng Zhang; Yong He; Hui-Xiong Xu; Xiao-Hong Xu; Chang Liu; Le-Hang Guo; Lin-Na Liu; Jun-Mei Xu
• Keywords: Thyroid Nodules; Ultrasound Elastography; Acoustic Radiation Force

Objectives- Acoustic radiation force impulse elastography is a newly developed ultrasound elasticity imaging technique that included both Virtual Touch tissue quantification and (VTI; Siemens Medical Solutions, Mountain View, CA). This study aimed to evaluate the usefulness of VTI in differentiating malignant from benign thyroid nodules. Methods- 192 consecutive patients with nodules (n = 219) who underwent surgery for compressive symptoms or suspicion malignancy. Tissue stiffness on was scored 1 (soft) 6 (hard). The scores between were compared. intraobserver interobserver agreement also assessed. Results- On elastography: score found 84 (all benign); 2 37 (3 papillary carcinomas 34 nodules); 3 25 (1 medullary carcinoma, carcinomas, 18 4 53 (50 5 17 (14 carcinomas). A greater highly predictive malignancy (P< .01), sensitivity, specificity, positive value, negative accuracy 87.0% (67 77), 95.8% (136 142), 91.8% 73), 93.1% 146), 92.7% (203 219), respectively. κ values 0.69 0.85 agreement. Conclusions- has great potential as an adjunctive tool combined conventional sonography differential diagnosis