MRE-CAS: Magnetic Resonance Elastography for Computed-Assisted Surgery
Elastography methods are particularly promising for in vivo biomechanical characterization, thanks to the fact that they are non invasive and non destructive. Most of the conventional elastography techniques remain qualitative or semi-quantitative, their objective being the diagnosis of abnormally stiff tissues. The objective of the MRE-CAS project is to develop a fully quantitative Magnetic Resonance Elastography (MRE) method, specifically for in vivo biomechanical characterization. Such new in vivo data will be implemented in numerical models used in Computer-Assisted Surgery in order to improve their realism.
This new MRE method is based on a novel approach in MRE for mechanical excitation, namely, the use of the acoustic radiation force for the generation of internal harmonic shear waves. We also use new methods for solving the inverse problem, with the emphasis on obtaining quantitative biomechanical data.
Keywords: Elastography, biomechanics, soft tissue, MRE
Jonathan Vappou, Elodie Breton, Simon Chatelin
The project has been awarded a Strasbourg IHU grant in 2014. It is based on the collaboration of the team with Siemens Healthcare.