Imaging of cross-sectional elasticity in short-axis plane of arterial wall by transcutaneous ultrasound

Nozomi Nakagawa*, Hideyuki Hasegawa, Hiroshi Kanai

*この論文の責任著者

研究成果: 書籍の章/レポート/会議録会議への寄与査読

抄録

We have developed the phased tracking method [1] for measuring the minute change in thickness during one heartbeat and the elasticity of the arterial wall with transcutaneous ultrasound. When this method is applied to a plane perpendicular to the axis of the artery (short-axis plane) using a linear-type probe, only an ultrasonic beam which passes through the center of the artery coincides with the direction of the change in thickness. At other beam positions, the wall motion cannot be accurately tracked because the direction of wall expansion slips off the beam. To obtain the cross-sectional image of elasticity in the short-axis plane using transcutaneous ultrasound, in this paper, the directions of ultrasonic beams are designed so that each beam always passes through the center of the artery; thus they always coincide with the direction of the wall expansion. In basic experiments, the accuracy in elasticity measurement was evaluated using a silicone rubber tube. In in vitro experiments using an extracted human femoral artery, the measured elasticity image were compared with the pathological image. In in vivo experiments, the minute change in wall thickness was measured along each ultrasonic beam, and the cross-sectional image of elasticity was obtained in the short-axis plane with transcutaneous ultrasound.

本文言語英語
ホスト出版物のタイトルProceedings - 2004 IEEE Ultrasonics Symposium
ホスト出版物のサブタイトルA Conference of the IEEE International Ultrasonics, Ferroelectrics, and Frequency Control Society, UFFC-S
編集者M.P. Yuhas
ページ1506-1509
ページ数4
DOI
出版ステータス出版済み - 2004
イベント2004 IEEE Ultrasonics Symposium - Montreal, Que., カナダ
継続期間: 2004/08/232004/08/27

出版物シリーズ

名前Proceedings - IEEE Ultrasonics Symposium
2
ISSN(印刷版)1051-0117

学会

学会2004 IEEE Ultrasonics Symposium
国/地域カナダ
CityMontreal, Que.
Period2004/08/232004/08/27

ASJC Scopus 主題領域

  • 音響学および超音波学

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