Spatio-temporal directional filtering for improved inversion of MR elastography images

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

2 Citations (Scopus)

Abstract

MR elastography can visualize and measure propagating shear waves in tissue-like materials subjected to harmonic mechanical excitation. This allows the calculation of local values of material parameters such as shear modulus and attenuation. Various inversion algorithms to perform such calculations have been proposed, but they are sensitive to areas of low displacement amplitude (and hence low SNR) that result from interference patterns due to reflection and refraction. A spatio-temporal directional filter applied as a preprocessing step can separate interfering waves so they can be processed separately. Weighted combinations of inversions from such directionally separated data sets can significantly improve reconstructions of shear modulus and attenuation.

Original languageEnglish (US)
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
PublisherSpringer Verlag
Pages293-299
Number of pages7
Volume2489
ISBN (Print)3540442251
StatePublished - 2002
Event5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002 - Tokyo, Japan
Duration: Sep 25 2002Sep 28 2002

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume2489
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002
CountryJapan
CityTokyo
Period9/25/029/28/02

Fingerprint

Inversion
Filtering
Elastic moduli
Wave interference
Attenuation
Wave filters
Shear waves
Modulus
Refraction
Tissue
Preprocessing
Harmonic
Excitation
Interference
Filter

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Manduca, A., Lake, D. S., & Ehman, R. L. (2002). Spatio-temporal directional filtering for improved inversion of MR elastography images. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 2489, pp. 293-299). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 2489). Springer Verlag.

Spatio-temporal directional filtering for improved inversion of MR elastography images. / Manduca, Armando; Lake, David S.; Ehman, Richard Lorne.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 2489 Springer Verlag, 2002. p. 293-299 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 2489).

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

Manduca, A, Lake, DS & Ehman, RL 2002, Spatio-temporal directional filtering for improved inversion of MR elastography images. in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). vol. 2489, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 2489, Springer Verlag, pp. 293-299, 5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002, Tokyo, Japan, 9/25/02.
Manduca A, Lake DS, Ehman RL. Spatio-temporal directional filtering for improved inversion of MR elastography images. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 2489. Springer Verlag. 2002. p. 293-299. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
Manduca, Armando ; Lake, David S. ; Ehman, Richard Lorne. / Spatio-temporal directional filtering for improved inversion of MR elastography images. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 2489 Springer Verlag, 2002. pp. 293-299 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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