Tissue elasticity reconstruction based on three-dimensional displacement data estimated by the weighted phase gradient method

N. Nitta, T. Shiina, E. Ueno

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

In order to evaluate elasticity distribution based on a 3-D tissue structure, we propose a method of measuring 3-D displacement vector distribution based on the multi-beam technique. This method, which utilizes the phase shift at each element on the 2-D array aperture, is referred to as the 'weighted phase gradient method (WPGM)'. To make the proposed method applicable to the measurement of strain for large displacement (i.e., beyond wavelength), the 'combined autocorrelation method', previously proposed by us, is incorporated into the WPGM as the phase shift detector. Moreover, we attempt to reconstruct the elastic modulus distribution using the measured 3-D displacement vectors. Numerical simulation validated the feasibility of our methods in evaluating the 3-D tissue structure.

本文言語English
ページ(範囲)1665-1668
ページ数4
ジャーナルProceedings of the IEEE Ultrasonics Symposium
2
出版ステータスPublished - 1999
外部発表はい
イベント1999 IEEE Ultrasonics Symposium - Caesars Tahoe, NV, USA
継続期間: 1999 10月 171999 10月 20

ASJC Scopus subject areas

  • 音響学および超音波学

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