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Restoration of ultrasonic NDE images
IEEE Transactions on Industrial Electronics, 1993The problem of determining the ultrasonic reflectivity function resulting from density changes in a material is posed as an image restoration problem. The received time-domain signal is modeled as resulting from convolution of the acoustic pulse with the reflectivity function with additive noise.
Wesley E. Snyder +2 more
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Ultrasonic imaging of soft tissues
Clinical Radiology, 1989As a technique that excels in the demonstration of soft tissues it seems obvious that ultrasound should be used in the study of abnormalities of muscle and subcutaneous tissue. However, the field has been surprisingly slow to develop. This probably results mainly from lack of familiarity with the technique in those departments dealing with these ...
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Subaperture processing for ultrasonic imaging
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1998Ultrasonic subaperture processing using aperture synthesis and beam space interpolation is presented. The number of beam lines scanning the image plane for a given transmit-receive subaperture combination is chosen according to the spatial sampling criteria for that combination.
M, Karaman, M, O'Donnell
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Ultrasonic Techniques for Molecular Imaging
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006Molecular imaging employs the use of site-targeted contrast agents that, once bound, indicate the expression of a molecular signal uniquely associated with a specific disease state. Ultrasonic contrast agents including microbubbles, nanoparticles, and liposomes have been successfully targeted towards angiogenesis associated with tumor growth ...
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Segmentation of Ultrasonic Images of the Carotid
2005A new algorithm for an effective and automatic segmentation of the carotid wall in ultrasonic images is proposed. It combines the speed of thresholding algorithms with the accuracy, flexibility and robustness of a successful geometric active contour model which incorporates an optimal image segmentation model in a level set framework.
Rui Rocha +2 more
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Ultrasonic colour flow imaging
Physics in Medicine and Biology, 1994Real-time ultrasonic colour flow imaging, which was first demonstrated to be feasible only about a decade ago, has come into widespread clinical use. Ultrasound is scattered by ensembles of red blood cells. The ultrasonic frequency that gives the best signal-to-noise ratio for backscattering from blood depends on the required penetration. The frequency
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Ultrasonic Imaging of the Thyroid Gland
2016Since the introduction in the 1970s of ultrasonography (US) for diagnostic and therapeutic purposes in clinical thyroidology, US has become widely accepted, increasingly employed, and mastered not only by specialist in diagnostic imaging. It is recommended by the thyroid specialist societies as the initial imaging method for individuals with thyroid ...
Papini, Enrico +3 more
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Ultrasonic image generating apparatus and ultrasonic image generating method
The Journal of the Acoustical Society of America, 2004The ultrasonic image generating system has an ultrasonic beam output device which outputs a beam to a predetermined subject area, a receiving device which receives the reflected wave from the area, an image generating device which generates an image from the reflected wave and a beam output direction controller which performs control of changing the ...
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Basic Principles of Ultrasonic Imaging
2019n.a.
Breyer, Branko, Andreić, Željko
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Ultrasonic Imaging of the Heart
Mayo Clinic Proceedings, 1978R L, Frye, D G, Ritter
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