The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Acoustic radiation force (ARF) has been used to generate shear waves in many different tissues for the purpose of quantifying material properties of those tissues. This method has also been applied to arteries, but care must be taken in this application because waves produced in the arterial wall are guided waves. To obtain accurate measurements of mechanical properties of arteries, guided wave inversion...
Characterization of viscoelastic properties of phantom materials has been an important subject to validate methods for ultrasound elastography. The frequency response of the motion of a rigid sphere, embedded in a viscoelastic medium, that is excited by an acoustic radiation force (ARF), has been utilized to estimate the viscoelastic properties of the medium. This response is commonly tracked with...
The ability to manipulate microparticles or nanoparticles precisely is important for the development of microsystem. Acoustic tweezers are excellent tools for manipulating particles with size approaching or slightly smaller than wavelength. However, manipulation of microparticles with much smaller size requires stronger acoustic confinement and higher intensities than can be provided by these diffraction-limited...
Spatially Modulated Ultrasound Radiation Force (SMURF) imaging is an Elastography technique based on estimating the shear modulus of an elastic material . SMURF determines shear modulus through measurement of the frequency of shear waves of known wavelength propagating in a medium of unknown modulus. Shear modulus is then computed using the relationship G = (??f)2??. The spatial frequency k of the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.