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Proceedings Paper

Dynamic programming on a tree for ultrasound elastography
Author(s): Roozbeh Shams; Mathieu Boily; Paul A. Martineau; Hassan Rivaz
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Paper Abstract

Ultrasound Elastography is an emerging imaging technique that allows estimation of the mechanical characteristics of tissue. Two issues that need to be addressed before widespread use of elastography in clinical environments are real time constraints and deteriorating effects of signal decorrelation between pre- and post-compression images. Previous work has used Dynamic Programming (DP) to estimate tissue deformation. However, in case of large signal decorrelation, DP can fail. In this paper we, have proposed a novel solution to this problem by solving DP on a tree instead of a single Radio-Frequency line. Formulation of DP on a tree allows exploiting significantly more information, and as such, is more robust and accurate. Our results on phantom and in-vivo human data show that DP on tree significantly outperforms traditional DP in ultrasound elastography.

Paper Details

Date Published: 1 April 2016
PDF: 9 pages
Proc. SPIE 9790, Medical Imaging 2016: Ultrasonic Imaging and Tomography, 97901F (1 April 2016); doi: 10.1117/12.2217345
Show Author Affiliations
Roozbeh Shams, Concordia Univ. (Canada)
Mathieu Boily, McGill Univ. Health Ctr. (Canada)
Paul A. Martineau, McGill Univ. Health Ctr. (Canada)
Concordia Univ. (Canada)
Hassan Rivaz, Concordia Univ. (Canada)

Published in SPIE Proceedings Vol. 9790:
Medical Imaging 2016: Ultrasonic Imaging and Tomography
Neb Duric; Brecht Heyde, Editor(s)

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