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.
Recently, magnetomotive ultrasound (MMUS) imaging has been introduced to detect magnetic nanoparticles (MNPs) which are not able to be visualized by conventional B-mode ultrasound. However, to date, only forward-mode MMUS where the imaging object is placed in between an ultrasound probe and an electromagnet is implemented in the literature. Such a MMUS mode is not suitable for clinical use. To facilitate...
Plane wave imaging is generally performed using linear array transducers which array pitch is larger than one wavelength, resulting in grating lobe artifacts. In addition, larger element width associated with linear array transducers reduces delay accuracy for delay-and-sum based plane wave beamformation and therefore causes higher sidelobes and lower imaging contrast. To suppress both of the artifacts,...
So far most rigorous reconstruction algorithms for photoacoustic tomography (PAT), for example, the modified back-projection algorithm, have been developed based on ideal point detectors. Nonetheless, because of the issue of poor signal-to-noise ratio from point-like detectors, finite-size flat transducers are commonly used in PAT, thus introducing the finite aperture effect - the tangential resolution...
Synthetic aperture focusing using a virtual source was used previously to increase the penetration and to extend the depth of focus in high-frequency ultrasonic imaging. However, the performance of synthetic aperture focusing is limited by its high sidelobes. In this paper, an adaptive weighting technique based on a focusing-quality index is introduced to suppress the sidelobes. The focusing-quality...
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.