Abstract : We consider the reconstruction of internal elastic displacements from ultrasound measurements , which finds applications in the medical imaging modality called elastography. By appropriate interferometry and windowed Fourier transforms of the ultrasound measurements, we propose a reconstruction procedure of the vectorial structure of spatially varying elastic displacements in biological tissues. This provides a modeling and generalization of scalar reconstruction procedures routinely used in elastography. The proposed algorithm is justified using a single scattering approximation and local asymptotic analysis. Its validity is assessed by numerical simulations.
https://hal.inria.fr/hal-01188761 Contributor : Sébastien ImperialeConnect in order to contact the contributor Submitted on : Monday, August 31, 2015 - 2:47:56 PM Last modification on : Saturday, June 25, 2022 - 7:39:37 PM Long-term archiving on: : Tuesday, December 1, 2015 - 10:32:44 AM