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Magnus Cinthio, MSc, PhD. Photo.

Magnus Cinthio

Senior lecturer

Magnus Cinthio, MSc, PhD. Photo.

Basic study on estimation method of wall shear stress in common carotid artery using blood flow imaging

Author

  • Ryo Nagaoka
  • Kazuma Ishikawa
  • Michiya Mozumi
  • Magnus Cinthio
  • Hideyuki Hasegawa

Summary, in English

In this paper, we propose a method for adaptive selection of the kernel size used in estimation of the wall shear stress (WSS) based on flow velocity profiles obtained by the blood flow imaging method based on enhancement of RF echo signals from blood cells using a singular value decomposition based clutter filter. Two simulation phantom experiments with the Field II program were performed to validate the proposed method. In the simulation experiments, the average bias error (BE) between the WSSs estimated by the conventional method and theoretical one was 16.5%. The proposed method could reduce the average BE to 12.3%. Also, the proposed method was applied to RF echo signals from a common carotid artery (CCA) of a healthy male subject. The WSSs in the CCA were estimated during one cardiac cycle and in a range similar to that in previous reports.

Department/s

  • Department of Biomedical Engineering

Publishing year

2020

Language

English

Publication/Series

Japanese Journal of Applied Physics

Volume

59

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Biomedical Laboratory Science/Technology

Status

Published

ISBN/ISSN/Other

  • ISSN: 0021-4922