Comparison of modeling accuracy of amplitude distribution models for ultrasonic tissue characterization of liver fibrosis

Shohei Mori, Shinnosuke Hirata, Hiroyuki Hachiya, Tadashi Yamaguchi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

A quantitative diagnostic method for liver fibrosis using ultrasound echo signals is highly required. A probability density function (PDF) of echo envelope from a normal liver can be approximated by a Rayleigh distribution; however, the PDF of echo envelope from liver fibrosis deviates from the Rayleigh distribution. To evaluate tissue characteristics in the ultrasound B-mode image, several amplitude distribution models have been proposed. We proposed a multi-Rayleigh distribution model and evaluation method of liver fibrosis using the multi-Rayleigh model. In this study, we evaluated the modeling accuracy of the multi-Rayleigh model and other amplitude distribution models using the KL divergence. From the evaluated results for the 120 clinical data, it was found that the multi-Rayleigh model with three components is more suitable model than other amplitude distribution models for approximating the PDF of echo envelope from the liver fibrosis.

本文言語English
ホスト出版物のタイトル2016 IEEE International Ultrasonics Symposium, IUS 2016
出版社IEEE Computer Society
ISBN(電子版)9781467398978
DOI
出版ステータスPublished - 2016 11月 1
外部発表はい
イベント2016 IEEE International Ultrasonics Symposium, IUS 2016 - Tours, France
継続期間: 2016 9月 182016 9月 21

出版物シリーズ

名前IEEE International Ultrasonics Symposium, IUS
2016-November
ISSN(印刷版)1948-5719
ISSN(電子版)1948-5727

Other

Other2016 IEEE International Ultrasonics Symposium, IUS 2016
国/地域France
CityTours
Period16/9/1816/9/21

ASJC Scopus subject areas

  • 音響学および超音波学

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