Application of Elasticity Imaging Techniques Based on Ultrasound in Breast Tumor Activity, Blood Supply, and Benign and Malignant Tumor Diagnosis

摘要

Objective: The purpose of the study is to discuss the application of ultrasound elasticity imaging techniques in the diagnosis of breast tumor activity, blood supply, benign and malignant tumor diagnosis, and help better diagnosing. Methods: 94 lesions of 84 femalebreast lesions patients were evaluated by conventional ultrasound and static ultrasound elasticity imaging techniques, including 29 malignant lesions and 65 benign lesions. The ultrasonic image was processed by image denoising algorithm. 5-point scale criteria were used to evaluate the elasticity of each lesion, and measure the strain rate (SR) and the mean value of strain color histogram of each lesion. The receiver operating characteristic curve (ROC) was used to analyze the diagnostic sensitivity, specificity, and area under the curve (Az) of various indicators, and evaluate the diagnostic value of conventional ultrasound, static ultrasound elastic imaging, and the combination of the two. Results: the highest Az value of 0.941 was obtained by combining the three static ultrasound elasticity imaging techniques, namely, scoring method, SR method, and strain color histogram method with conventional ultrasound. It was higher than that (0.891) based on conventional ultrasound breast image report and data system (BI-RADS). Moreover, the diagnosis sensitivity was significantly improved, and the specificity was basically unchanged. Conclusion: the combination of static ultrasound elasticity imaging techniques and conventional ultrasound can reduce the number of benign breast lesions and avoid the omission of malignant lesions requiring biopsy. Static ultrasound elasticity imaging techniques are helpful to distinguish the breast lesions. It can be used as a supplement to conventional ultrasound and improve the diagnostic efficiency of ultrasound.