Conventional ultrasound techniques are ideal for generating images of the outlines of organs but they provide little information about the types of tissue within these organs. Now Mathias Fink and colleagues from the Laboratoire Ondes et Acoustique in Paris have managed to address this problem (J Bercoff et al. 2004 Appl. Phys. Lett. 842202). The team used shear waves that propagate by moving the point masses from side to side, rather than forward and backwards. The technique could have applications for ultrasound imaging in medicine.
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机译：传统的超声技术是生成器官轮廓图像的理想选择，但它们提供的有关这些器官内组织类型的信息很少。现在，位于巴黎的Ondes et Acoustique实验室的Mathias Fink及其同事设法解决了这个问题（J Bercoff等人2004 Appl。Phys。Lett。842202）。研究小组使用了剪切波，这些剪切波通过将点质量从一侧移动到另一侧而不是前后移动来传播。该技术可以在医学中用于超声成像。
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