Two-dimensional blood flow vectors obtained with bidirectional Doppler ultrasound

Genta Masuno, Ryo Nagaoka, Aiko Omori, Yasuo Ishikawa, Osamu Akagawa, Mototaka Arakawa, Yoshifumi Saijo

研究成果: 書籍の章/レポート/会議録会議への寄与査読

1 被引用数 (Scopus)

抄録

Precise measurement of blood flow is important because blood flow closely correlates formation of thrombus and atherosclerotic plaque. Among clinically applied modalities for blood flow measurement, color Doppler ultrasound shows two-dimensional (2D) distribution of one-dimensional blood flow component along the ultrasound beam. In the present study, 2D blood flow vector is obtained with high temporal and bidirectional Doppler ultrasound technique. Linear array probe with the central frequency of 7.5 MHz and an ultrasound data acquisition system with 128 transmit and 128 receive channels were equipped. Frame rate of 5 kHz was achieved by parallel receive beam forming with a wide transmitted wave. The flow velocity was measured from two different angles by beam steering. The interval of two measurements was 0.8 msec and it was considered as almost one moment to obtain 2D blood flow vector. B-mode image and 2D blood flow vector of the pulsatile flow in a carotid artery model showed small vortex at the bifurcation area. The method was also applied for visualization of in vivo blood flow vector in human carotid arteries. 2D blood flow measurement may predict the risk area of thrombus and plaque formation induced by abnormal blood flow.

本文言語英語
ホスト出版物のタイトル2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
出版社Institute of Electrical and Electronics Engineers Inc.
ページ5093-5096
ページ数4
ISBN(電子版)9781424479290
DOI
出版ステータス出版済み - 2014/11/02
イベント2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 - Chicago, 米国
継続期間: 2014/08/262014/08/30

出版物シリーズ

名前2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014

学会

学会2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
国/地域米国
CityChicago
Period2014/08/262014/08/30

ASJC Scopus 主題領域

  • 健康情報学
  • コンピュータ サイエンスの応用
  • 生体医工学
  • 医学一般

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