Reconstruction of elasticity and attenuation maps in shear wave imaging: An inverse approach

Armando Manduca, Vinayak Dutt, David T. Borup, Raja Muthupillai, Richard L. Ehman, James F. Greenleaf

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

Acoustic shear waves of low frequency can be detected and measured using a phase contrast based magnetic resonance imaging technique called MR Elastography or phase measurement based ultrasound techniques. Spatio-temporal variations of displacements caused by the propagating waves can be used to estimate local values of the elasticity of the object being imaged. The currently employed technique for estimating the elasticity from the wave displacement maps, the local frequency estimator (LFE), has fundamental resolution limits and also has problems with shadowing and other refraction-related artifacts. These problems can be overcome with an inverse approach using Green’s function integrals which directly solve the wave equation problem for the propagating wave. The complete measurements of wave displacements as a function of space and time over the object of interest obtained by the above techniques permit an iterative approach to inversion of the wave equation to obtain elasticity and attenuation maps.

Original languageEnglish (US)
Title of host publicationMedical Image Computing and Computer-Assisted Intervention ─ MICCAI 1998 - 1st International Conference, Proceedings
EditorsWilliam M. Wells, Alan Colchester, Scott Delp
PublisherSpringer Verlag
Pages606-613
Number of pages8
ISBN (Print)3540651365, 9783540651369
DOIs
StatePublished - 1998
Event1st International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 1998 - Cambridge, United States
Duration: Oct 11 1998Oct 13 1998

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume1496
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other1st International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 1998
CountryUnited States
CityCambridge
Period10/11/9810/13/98

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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    Manduca, A., Dutt, V., Borup, D. T., Muthupillai, R., Ehman, R. L., & Greenleaf, J. F. (1998). Reconstruction of elasticity and attenuation maps in shear wave imaging: An inverse approach. In W. M. Wells, A. Colchester, & S. Delp (Eds.), Medical Image Computing and Computer-Assisted Intervention ─ MICCAI 1998 - 1st International Conference, Proceedings (pp. 606-613). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 1496). Springer Verlag. https://doi.org/10.1007/bfb0056246