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Shear Wave Imaging was used to monitor radiofrequency ablation (RFA) of myocardial tissues in vivo and in vitro. This technique was used to quantify and to map the myocardial stiffness before and after cardiac ablation. Experiments were performed in vivo on a sheep and in vitro samples of bovine muscle. The feasibility of mapping the myocardial elasticity was demonstrated in vitro after RFA. A strong...
ShearWavetrade Elastography (SWE) is a new real time ultrasound imaging mode that quantitatively measures local tissue elasticity in kPa. Based on the Supersonic Shear Imaging concept (developed at the Laboratoire Ondes et Acoustique, Paris), this new concept may appear as a promising tool to improve breast lesion characterization. In vitro experimental measurements have been performed to quantify...
Elastography has many exciting new areas of application in the domains of diagnosis and therapy. We present in this overview the current gold standard given by MR elastography, which uses a full three-dimensional approach to solve locally for the unknown complex shear modulus at one frequency. Clinical results for benign and malignant breast lesions are shown. Less rigorous in terms of data completeness,...
Elastography holds great promises for the additional characterization of lesions especially in the domain of breast cancer diagnosis. Most ultrasound based approaches have so far been limited to a one dimensional (1D) or at most two dimensional (2D) displacement estimation in one plane. This leads for the general case to sparse data which cannot be used to solve the full three dimensional (3D) wave...
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