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

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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.

Ishikawa, KazumaUniversity of Toyama (författare)
Mozumi, MichiyaUniversity of Toyama (författare)
Cinthio, MagnusLund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)elma-mpe (författare)
Hasegawa, HideyukiUniversity of Toyama(Swepub:lu)hi3425ha (författare)
University of ToyamaAvdelningen för Biomedicinsk teknik (creator_code:org_t)

Av författaren/redakt...: Nagaoka, Ryo; Ishikawa, Kazuma; Mozumi, Michiya; Cinthio, Magnus; Hasegawa, Hideyu ...

Om ämnet

MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Medicinsk biotek ...; och Biomedicinsk lab ...

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