Results 241 to 250 of about 27,779 (268)

Ultrasound Elastography

Der Radiologe, 2016
Noninvasive, ultrasound-based methods for visualizing and measuring tissue elasticity are becoming more and more common in routine practice. Using hepatic shear wave elastography, cut-off levels can help to detect the degree of relevant fibrosis (F ≥ 2) with a diagnostic accuracy using the area under the reader operating characteristic (AUROC) of 87 ...
Huan Wee Chan, Jeffrey Bamber, Neil Dorward, Aabir Chakraborty, Christopher Uff   +4 more
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Endoscopic Ultrasound Elastography

Pancreatology, 2011
Sonoelastography is based on the knowledge that some diseases, such as cancer, lead to a change in tissue hardness. Elastography examines the elastic properties of tissues by applying a slight compression to the tissue and comparing the images obtained before and after this compression.
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Algorithms for ultrasound elastography: a survey

Computer Methods in Biomechanics and Biomedical Engineering, 2011
Elastography is a useful and interesting technique that can be used to infer stiffness information from ultrasound medical images. In one decade of activity, the scientific community has developed this technique to a more and more mature stage, such that it has evolved into a fruitful application for clinical practice. During this decade, the evolution
Mauro M, Sette, Pauwel, Goethals, Jan, D'hooge, Hendrik, Van Brussel, Jos Vander, Sloten   +4 more
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The application of ultrasound elastography in the shoulder

Journal of Shoulder and Elbow Surgery, 2017
Ultrasound elastography (EUS) is a recently developed method for the assessment of tissue elasticity by applying mechanical stress and subsequently analyzing tissue displacement with ultrasound. To date, mainly two different techniques are used in clinical practice: strain (compression) EUS and shear wave EUS.
Jonas, Schmalzl, Annabel, Fenwick, Dirk, Boehm, Fabian, Gilbert   +3 more
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Ultrasound Elastography Applications in Pediatrics

Ultrasound Quarterly, 2018
Abstract Ultrasound is one of the most important imaging modalities in pediatric imaging because of its accessibility, portability, lack of ionizing radiation, and ability to generally perform examinations without need for sedation. Ultrasound elastography can measure the stiffness of various tissues.
Vishal, Thumar, Judy H, Squires, Paul J, Spicer, Amie L, Robinson, Sherwin S, Chan   +4 more
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Ultrasound palpation by haptic elastography

2011 24th International Symposium on Computer-Based Medical Systems (CBMS), 2011
Palpation is an important method in the medical physical examination. Surface palpation alone, however, cannot be used in many situations due to the anatomical positions. Elastography images are therefore in many cases a complement to other imaging modalities.
Karljohan E. Lundin Palmerius, Roald Flesland Havre, Odd Helge Gilja, Ivan Viola   +3 more
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Intravascular ultrasound elastography: an overview

Ultrasonics, 2002
The composition and morphology of the atherosclerotic lesion are currently considered more important determinants of acute coronary ischemic syndromes than the degree of stenosis. When a lesion is unstable, it may rupture and cause an acute thrombotic reaction. A rupture prone plaque contains a large lipid pool covered by a thin fibrous cap. The stress
Korte, C.L. de, Steen, A.F.W. van der
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Real-Time Regularized Ultrasound Elastography

IEEE Transactions on Medical Imaging, 2011
This paper introduces two real-time elastography techniques based on analytic minimization (AM) of regularized cost functions. The first method (1D AM) produces axial strain and integer lateral displacement, while the second method (2D AM) produces both axial and lateral strains.
Hassan Rivaz, Emad Boctor, Michael A. Choti, Gregory D. Hager   +3 more
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Ultrasound Elastography: A Dynamic Programming Approach

IEEE Transactions on Medical Imaging, 2008
This paper introduces a 2-D strain imaging technique based on minimizing a cost function using dynamic programming (DP). The cost function incorporates similarity of echo amplitudes and displacement continuity. Since tissue deformations are smooth, the incorporation of the smoothness into the cost function results in reduced decorrelation noise.
Hassan Rivaz, Emad Boctor, Pezhman Foroughi, Richard Zellars, Gabor Fichtinger, Gregory D. Hager   +5 more
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Spleen Stiffness by Ultrasound Elastography

2018
This chapter reviews the use of spleen stiffness measurements (SSM) by ultrasound elastography technique. SSM represents a new, useful, non-invasive tool able to help the hepatologist in the management of the patient with liver diseases and different clinical presentations.
Colecchia, Antonio, Ravaioli, Federico, Marasco, Giovanni, Festi, Davide   +3 more
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