Deduction of two-dimensional blood flow vector by dual angle diverging waves from a cardiac sector probe

Moe Maeda, Ryo Nagaoka, Hayato Ikeda, So Yaegashi, Yoshifumi Saijo

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Color Doppler method is widely used for noninvasive diagnosis of heart diseases. However, the method can measure one-dimensional (1D) blood flow velocity only along an ultrasonic beam. In this study, diverging waves with two different angles were irradiated from a cardiac sector probe to estimate a two-dimensional (2D) blood flow vector from each velocity measured with the angles. The feasibility of the proposed method was evaluated in experiments using flow poly(vinyl alcohol) (PVA) gel phantoms. The 2D velocity vectors obtained with the proposed method were compared with the flow vectors obtained with the particle image velocimetry (PIV) method. Root mean square errors of the axial and lateral components were 11.3 and 29.5 mm/s, respectively. The proposed method was also applied to echo data from the left ventricle of the heart. The inflow from the mitral valve in diastole and the ejection flow concentrating in the aorta in systole were visualized.

Original languageEnglish
Article number07LF02
JournalJapanese journal of applied physics
Volume57
Issue number7
DOIs
Publication statusPublished - 2018 Jul

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Deduction of two-dimensional blood flow vector by dual angle diverging waves from a cardiac sector probe'. Together they form a unique fingerprint.

  • Cite this