Modified error in constitutive equations (MECE) approach for ultrasound elastography.

Published

Journal Article

A partial differential equation-constrained optimization approach is presented for reconstructing mechanical properties (e.g., elastic moduli). The proposed method is based on the minimization of an error in constitutive equations functional augmented with a least squares data misfit term referred to as MECE for "modified error in constitutive equations." The main theme of this paper is to demonstrate several key strengths of the proposed method on experimental data. In addition, some illustrative examples are provided where the proposed method is compared with a common shear wave elastography (SWE) approach. To this end, both synthetic data, generated with transient finite element simulations, as well as ultrasonically tracked displacement data from an acoustic radiation force (ARF) experiment are used in a standard elasticity phantom. The results indicate that the MECE approach can produce accurate shear modulus reconstructions with significantly less bias than SWE.

Full Text

Duke Authors

Cited Authors

  • Ghosh, S; Zou, Z; Babaniyi, O; Aquino, W; Diaz, MI; Bayat, M; Fatemi, M

Published Date

  • October 2017

Published In

Volume / Issue

  • 142 / 4

Start / End Page

  • 2084 -

PubMed ID

  • 29092577

Pubmed Central ID

  • 29092577

Electronic International Standard Serial Number (EISSN)

  • 1520-8524

International Standard Serial Number (ISSN)

  • 0001-4966

Digital Object Identifier (DOI)

  • 10.1121/1.5006911

Language

  • eng