Department of Radiology, Wroclaw Medical University, Poland.
Adv Clin Exp Med. 2014 Jul-Aug;23(4):645-55. doi: 10.17219/acem/26301.
Sonoelastography is a modern ultrasound method, which enables the representation of tissues and organs with the evaluation of their elasticity, "stiffness". The principle of elastography is to use repeated, slight pressure on the examined organ with the ultrasound transducer. Changes in elasticity and deformation of tissues arising whilst the compression is processed and presented in real time with color-coded maps, is called elastograms. The method is applicable mainly in diagnosing malignant lesions. Tumor tissues have different elasticity and undergo different deformations under pressure than healthy tissues. As a result of computer analysis, images in various colors are generated. Based on the nature of areas of normal and increased stiffness classifications of the images in point scales have been developed. Ultrasound devices equipped with sonoelastography option enable more accurate imaging and evaluation of the nature of lesions situated at small depth, e.g. breast, thyroid, testicles, prostate, some groups of lymph nodes. They increase the accuracy of ultrasound in diagnostics and the evaluation of the stage of malignant lesions. This also helps to indicate more precisely the areas that require the biopsy.
超声弹性成像是一种现代的超声方法，能够评估组织和器官的弹性，即“硬度”。弹性成像的原理是使用超声换能器对检查的器官进行重复的轻微压力。在处理压缩时，组织的弹性变化和变形会实时以彩色编码图的形式呈现，称为弹性图像。该方法主要适用于诊断恶性病变。肿瘤组织的弹性与健康组织不同，在压力下会发生不同的变形。通过计算机分析，会生成各种颜色的图像。根据正常和增加硬度区域的性质，已经开发出了基于点刻度的图像分类。配备超声弹性成像功能的超声设备可以更准确地对位于小深度的病变（如乳房、甲状腺、睾丸、前列腺、某些淋巴结群）进行成像和评估。它们提高了超声诊断和恶性病变分期的准确性。这也有助于更精确地指示需要进行活检的区域。
