副本弹性成像分类及原理

Table 1 The types of elastography described in this paper.

动态成像

1 Palpation, balloon expansion etc., whether body surface or intracavity.注1：在体表或腔内，叩击冲击，气球膨胀挤压等

2 Cardiovascular or respiratory pulsation, or muscular contraction.

注2：心血管搏动、呼吸运动、或肌肉运动。

3 The term “real time” has been avoided here as, unlike real-time ultrasonography (and as explain systems described in this paper are not yet suitable for rapid searching through large volumes nor within a sequence of elastograms.

注3：不同于实时超声成像，在这里回避了“实时”这一说法（如本注解），本文中认为弹性成像为还不适用于较快运动组织的弹性成像。

4 The term shear-wave elastography (SWE) has been used here according to the current literature, wh images of shear-wave speed using radiation force excitation. Thus it includes 2D SWE and 3D SWE. Th elastography (pSWE) has been used for the method where a regional average only (no image) of shear-radiation force excitation. This emphasises that it is essentially a SWE method, even though in the as ARFI quantification. Transient elastography (TE) also measures shear-wave speed without creating surface mechanical force rather than acoustic radiation force, it has not been classified here unde 注4：参照之前的文献本文中使用了“剪切波（SWE）”这一术语，这里指的是利用由聚焦超声脉冲激发的剪切波的法。因此就包含了2D剪切波和3D剪切波。“点剪切波”术语是指仅测量区域内由声脉冲冲击产生的剪切波传播速度在文献中被称为ARFI定量，其本质上也是一种剪切波（SWE）成像方法。瞬时弹性成像（TE）也是没有图像而只是机械冲击而不是超声聚集脉冲冲击，所以没有归入SWE成像。

5 Shear-wave speed may be converted to shear modulus or Young’s modulus under assumptions explaine appendix.

注5：在文章中和附录中剪切波速度可能会被转换为剪切模量或杨氏模量。

据专家介

绍，目前

有关超声

弹性成像

的技术较

多，有研

究人员将

其分为3

种：压迫

性弹性成

像、间歇

性弹性成

像、振动

性弹性成

像。首次

提出的弹

性成像便

是使用压

迫性弹性

成像的技

术方法。

压迫性弹性成像是通过操作者手法施加一定的压力，比较组织受压前后的变化得到一幅相关的压力图。目前，广泛应用于临床的日本HITACHI公司所开发的超声弹性成像设备即采用压迫性弹性成像。已研制成的超声弹性成像仪以原有的超声彩色成像仪为基础,在设备内部设

graphy (and as explained in the text), the elastography ugh large volumes nor for observing rapid tissue motion 弹性成像为还不适用于较大体积组织的弹性成像，也不适用于较

current literature, where it refers to methods that make 2D SWE and 3D SWE. The term point shear-wave

y (no image) of shear-wave speed is measured using

od, even though in the literature it has been referred to speed without creating an image but, since it uses a

n classified here under the term SWE.

焦超声脉冲激发的剪切波的传播速度作为成像参数的一种成像的方冲击产生的剪切波传播速度的平均值得成像方法（无图像）。虽然TE）也是没有图像而只是测量剪切波速度，但是因为他使用表面r assumptions explained in the text and the online