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The pathological or physiological changes of the crystalline lens directly affect the eye accommodation and transmittance, and then increase the risk of the presbyopia and cataract for people in middle and old age groups. There is no universally accepted quantitative method to measure the lens' mechanical properties in vivo so far. This study aims to investigate the possibility of assessing the age-related...
Most ultrasound elastographic methods utilize a purely elastic model to describe the liver mechanical properties. However, to describe tissue that is dispersive and to obtain an accurate measure of tissue elasticity, the tissue viscoelastic property should be examined. The objective of this study was to investigate the shear viscoelastic characteristics, as measured by ultrasound elastography, of...
As a new imaging method for tissue mechanical properties, ultrasound elastography has always been the research focus in the field of medical ultrasound imaging ever since it has been proposed. This paper developed an ultrasound viscoelasticity measurement system based on shear wave dispersion ultrasound vibrometry (SDUV). This system applied acoustic radiation force to excite harmonic vibration in...
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