SKG Radiology, Subiaco, Perth, Western Australia, Australia.
Discipline of Medical Radiation Sciences, School of Molecular and Life Sciences, Curtin University, Perth, Western Australia, Australia.
J Ultrasound Med. 2019 Nov;38(11):3065-3071. doi: 10.1002/jum.14984. Epub 2019 Mar 18.
Ultrasound (US) shear wave technology providers have either point shear wave elastography (SWE) or 2-dimensional SWE available on their US systems. With 2-dimensional SWE, larger regions of interest can be interrogated, with both the main acoustic radiation pulses and the resultant shear waves potentially being affected by US artifacts. Some providers assist the operator with elastographic maps indicating the reliability or precision of the shear wave propagation. This Technical Innovation explores the importance of the consideration of the precision maps and standard deviation output available on some devices and the implications for conversion of shear wave speed to pressure.
超声（US）剪切波技术供应商的 US 系统中提供了点剪切波弹性成像（SWE）或二维 SWE。二维 SWE 可检测更大的感兴趣区域，主要声辐射脉冲和产生的剪切波都可能受到 US 伪影的影响。一些供应商通过弹性成像图协助操作者，这些图指示了剪切波传播的可靠性或精度。这项技术创新探讨了一些设备上提供的精度图和标准偏差输出的重要性，以及对剪切波速度到压力转换的影响。
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