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Proceedings Paper

Young's modulus imaging based on axial and lateral strain estimation from ultrasound data using a clinical linear probe
Author(s): Ghada Said; Didier Vray; Herve Liebgott; Elisabeth Brusseau; Olivier Basset
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Paper 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.

Paper Details

Date Published: 12 April 2005
PDF: 8 pages
Proc. SPIE 5750, Medical Imaging 2005: Ultrasonic Imaging and Signal Processing, (12 April 2005); doi: 10.1117/12.590385
Show Author Affiliations
Ghada Said, CREATIS, CNRS, INSERM, and INSA de Lyon (France)
Didier Vray, CREATIS, CNRS, INSERM, and INSA de Lyon (France)
Herve Liebgott, CREATIS, CNRS, INSERM, and INSA de Lyon (France)
Elisabeth Brusseau, CREATIS, CNRS, INSERM, and INSA de Lyon (France)
Olivier Basset, CREATIS, CNRS, INSERM, and INSA de Lyon (France)


Published in SPIE Proceedings Vol. 5750:
Medical Imaging 2005: Ultrasonic Imaging and Signal Processing
William F. Walker; Stanislav Y. Emelianov, Editor(s)

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