Implementation of two-dimensional shear wave elastography and acoustic radiation force impulse induced strain elastography in combination with B-mode ultrasound:a method avoids unnecessary biopsies of breast lesions
作者单位：In-Patient Ultrasound DepartmentSecond Affiliated Hospital of Harbin Medical University
会议名称：《中国超声医学工程学会第五届全国介入超声医学学术交流大会》
会议日期：2019年
学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 100207[医学-影像医学与核医学] 1002[医学-临床医学] 08[工学] 1010[医学-医学技术（可授医学、理学学位）] 100214[医学-肿瘤学] 10[医学]
关 键 词：Virtual touch tissue imaging and quantification Breast lesions Virtual touch imaging Biopsy
摘 要：Purpose:To investigate the diagnostic performance of two-dimensional shear wave elastography and acoustic radiation force impulse induced strain elastography in diff erentiation benign and malignant breast *** to explore the performance in avoiding unnecessary biopsies when they combine with B(mode ***:One hundred fifty nine benign breast lesions and one hundred eleven malignant breast lesions were retrospectively *** ultrasound(CUS) features and virtual touch imaging(VTI) and virtual touch tissue imaging and quantification(VTIQ) parameters of all the lesions were *** shear wave speed(SWS) and VTI score were *** area under the receiver operating characteristic(AUCROC) curve analysis was performed to evaluate the best cut(off value of SWS and VTI *** decreased the BI-RADS grade of the lesion form 4 a to 3 when either one of the VTIQ or VTI were *** reference standard was histopathological and/or core-needle biopsy(CNB) ***:The SWS and the VTI score of malignant lesions were significantly higher than those of benign lesions(P 0.05).Among VTIQ parameters,the maximum of SWS-SWS(max) achieved the highest diagnostic performance with a cut-off value of 4.46 m/*** cut-off value of VTI score was *** to the SWS-max and VTI scores,there were 84.4%(27/32) BI-RADS 4 a lesions on B-mode ultrasound degraded to 3 which avoided unnecessary ***:Combination of VTIQ and VTI is a strong complement to B-mode ultrasound,which is a promising method in the differential diagnosis of the breast lesions as well as reduce unnecessary biopsies.