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. Author manuscript; available in PMC: 2016 Apr 4.
Published in final edited form as: AJR Am J Roentgenol. 2015 Apr 23;205(1):22–32. doi: 10.2214/AJR.15.14552

Table 3.

Terminology proposed European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) to describe ultrasound-based dynamic elastography techniques [14].

1D transient elastography (TE) refers to methods that use a single element ultrasound transducer to track shear waves generated externally by a vibrating probe placed on the body surface. The prototype is Fibroscan® developed by Echosens [16]. This is a stand-alone device without anatomic imaging capability. Some investigators refer to it as vibration-controlled transient elastography (VCTE).
Point shear-wave elastography (pSWE) refers to methods that measure shear wave speed (or derived stiffness-related parameter) in a user-defined small region of interest. Although a parametric map is not generated, the location of the region of interest is captured on a conventional B-mode image. The prototype is Virtual Touch™ Quantification, using acoustic radiation force impulse (ARFI) technology commercialized by Siemens [11].
Shear wave elastography (SWE) refers to methods that generate quantitative parametric maps displaying the shear wave speed (or derived stiffness-related parameter). The prototype is “supersonic shear imaging (SSI)” developed by SuperSonic Imagine [33].