12 April 2005 Young's modulus imaging based on axial and lateral strain estimation from ultrasound data using a clinical linear probe
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Abstract
Strain imaging is useful for visualizing information related to tissue stiffness. However, strain is a parameter that depends on the boundary conditions, tissue connectivity and geometry. As a result, tissue hardness cannot be quantitatively evaluated from the strain distribution. Therefore, reconstruction of the elastic modulus (Young's Modulus) distribution has been investigated for quantitative evaluation of tissue hardness. A method has been recently proposed [NITT 00] to calculate locally the Young's modulus of tissues from the estimations of 3D displacement field within the medium. This approach requires a specific annular ultrasonic probe. The aim of our work, based on Nitta's approach, is to build a Young modulus mapping using clinical ultrasonic equipment. Results from finite-element simulations and a physical phantom are presented.
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Ghada Said, Ghada Said, Didier Vray, Didier Vray, Herve Liebgott, Herve Liebgott, Elisabeth Brusseau, Elisabeth Brusseau, Olivier Basset, Olivier Basset, } "Young's modulus imaging based on axial and lateral strain estimation from ultrasound data using a clinical linear probe", Proc. SPIE 5750, Medical Imaging 2005: Ultrasonic Imaging and Signal Processing, (12 April 2005); doi: 10.1117/12.590385; https://doi.org/10.1117/12.590385
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