Preclinical evaluation of acoustic radiation force impulse measurements in regions of heterogeneous elasticity
Preclinical evaluation of acoustic radiation force impulse measurements in regions of heterogeneous elasticity
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DOI：
10.14366/usg.16024
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发表时间：
2016-10-01
期刊：
影响因子：
3.1
通讯作者：
Stock, Konrad Friedrich
中科院分区：
文献类型：
--
作者：
Hollerieth, Katharina;Gassmann, Bernhard;Stock, Konrad Friedrich
目的：比较均匀和非均匀弹性体模超声横波成像的可靠性。方法：采用声辐射力脉冲(ARFI)弹性成像技术，分别用凸形4C1探头和线形9L4探头测量了弹性成像体模不同部位的剪切波速。感兴趣区(ROI)的位置由其中一个病变(0%、25%、50%、75%和100%)和部分背景(分别为100%、75%、50%、25%和0%)填充。结果：成功率为98.5%。SWV实测值与参考值呈显著正相关(r=0.89，P
Purpose: The purpose of this study was to compare the reliability of ultrasound-based shear wave elastography in regions of homogeneous versus heterogeneous elasticity by using two different probes.Methods: Using acoustic radiation force impulse (ARFI) elastography, we measured the shear wave velocity (SWV) in different lesions of an elastography phantom with the convex 4C1 probe and the linear 9L4 probe. The region of interest (ROI) was positioned in such a way that it was partly filled by one of the lesions (0%, 25%, 50%, 75%, and 100%) and partly by the background of the phantom (100%, 75%, 50%, 25%, and 0%, respectively).Results: The success rate was 98.5%. The measured value and the reference value of SWV correlated significantly (r=0.89, P