Adaptive-beamformer with accurate intensity-estimation technique for high-range-resolution vascular ultrasound imaging

Hirofumi Taki, Takuya Sakamoto, Makoto Yamakawa, Tsuyoshi Shiina, Toru Sato, Kousuke Taki, Motoi Kudo

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

For the early detection and for the treatment assessment of cardiovascular disease, improvement in range resolution of vascular ultrasound imaging is highly desirable. The employment of frequency domain interferometry with the Capon method largely improves the range resolution of ultrasound imaging; however, this methodology often underestimates the echo intensity. In this paper, we propose a compensation method to improve the estimation accuracy in echo intensity acquired by the high-range-resolution ultrasound imaging method based on frequency domain interferometry. The method requires 0.18 s/frame using a single CPU PC. The proposed method has the spatial resolution of 0.05 mm with the average estimation intensity error of 0.15 dB on the log scale, where we employ an ultrasound pulse of 7.5 MHz center frequency. We have applied the proposed method to a swine femoral artery in vitro and a human carotid artery in vivo, and verified its efficiency to improve the accuracy in echo intensity estimation.

本文言語English
ホスト出版物のタイトル2013 IEEE International Ultrasonics Symposium, IUS 2013
ページ805-808
ページ数4
DOI
出版ステータスPublished - 2013
外部発表はい
イベント2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic
継続期間: 2013 7月 212013 7月 25

出版物シリーズ

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

Conference

Conference2013 IEEE International Ultrasonics Symposium, IUS 2013
国/地域Czech Republic
CityPrague
Period13/7/2113/7/25

ASJC Scopus subject areas

  • 音響学および超音波学

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