| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a displacement/distortion measuring device or the like for measuring the displacement or distortion in the region of interest in living tissues and a displacement measuring method for measuring elastic moduli such as shear modulus, Poisson's ratio, Lame constant, viscoelastic moduli such as viscoelastic shear modulus, viscoelastic Poisson's ratio, viscoelastic Lame constant, and density. <P>SOLUTION: The displacement measuring method includes a step (a) for irradiating an ultrasonic wave to an area of interest of an article to be measured in a plurality of time phases, a step (b) for detecting ultrasonic echoes generated from the article to be measured in the plurality of time phases and outputting the ultrasonic echo signals, a step (c) for obtaining a plurality of ultrasonic echo signals having different ultrasonic parameters by changing at least one ultrasonic echo parameters in beam forming, and a step (d) for measuring 3D displacement vectors based on the phases of the plurality of ultrasonic echo signals having ultrasonic parameters common to the plurality of time phases. <P>COPYRIGHT: (C)2012,JPO&INPIT |
