Velocity vector estimation in synthetic aperture flow and B-mode imaging

Jørgen Arendt Jensen

doi:10.1109/ISBI.2004.1398467

Velocity vector estimation in synthetic aperture flow and B-mode imaging

Jørgen Arendt Jensen

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Abstract

A method for determining both velocity magnitude and angle in a synthetic aperture ultrasound system is described. The approach uses directional beamforming along the flow direction and cross-correlation to determine velocity magnitude. The angle of the flow is determined from the maximum normalized correlation calculated as a function of angle. The method is investigated using data measured by an experimental ultrasound scanner from a flow rig. A commercial 7 MHz linear array transducer is used and data are measured for flow angles of 60° and 90°. The velocity magnitude is determined with a precision of 0.36 % (60°) and 1.2 % (90°), respectively. The 60° angle is estimated with a bias of 0.54° and a standard deviation of 2.1°. For 90° the bias is 0.0003° and standard deviation 1.32°.

Original language	English
Title of host publication	IEEE International Symposium on Biomedical Imaging 2004
Publisher	IEEE
Publication date	2004
Pages	33-36
ISBN (Print)	0-7803-8389-3
DOIs	https://doi.org/10.1109/ISBI.2004.1398467
Publication status	Published - 2004
Event	2004 IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Arlington, United States Duration: 15 Apr 2004 → 18 Apr 2004 Conference number: 2 https://ieeexplore.ieee.org/xpl/conhome/9591/proceeding

Conference

Conference	2004 IEEE International Symposium on Biomedical Imaging
Number	2
Country/Territory	United States
City	Arlington
Period	15/04/2004 → 18/04/2004
Internet address	https://ieeexplore.ieee.org/xpl/conhome/9591/proceeding

Bibliographical note

Copyright: 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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title = "Velocity vector estimation in synthetic aperture flow and B-mode imaging",

abstract = "A method for determining both velocity magnitude and angle in a synthetic aperture ultrasound system is described. The approach uses directional beamforming along the flow direction and cross-correlation to determine velocity magnitude. The angle of the flow is determined from the maximum normalized correlation calculated as a function of angle. The method is investigated using data measured by an experimental ultrasound scanner from a flow rig. A commercial 7 MHz linear array transducer is used and data are measured for flow angles of 60° and 90°. The velocity magnitude is determined with a precision of 0.36 \% (60°) and 1.2 \% (90°), respectively. The 60° angle is estimated with a bias of 0.54° and a standard deviation of 2.1°. For 90° the bias is 0.0003° and standard deviation 1.32°.",

author = "Jensen, \{J{\o}rgen Arendt\}",

note = "Copyright: 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE; 2004 IEEE International Symposium on Biomedical Imaging : From Nano to Macro, ISBI 2004 ; Conference date: 15-04-2004 Through 18-04-2004",

year = "2004",

doi = "10.1109/ISBI.2004.1398467",

language = "English",

isbn = "0-7803-8389-3",

pages = "33--36",

booktitle = "IEEE International Symposium on Biomedical Imaging 2004",

publisher = "IEEE",

address = "United States",

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AU - Jensen, Jørgen Arendt

N1 - Conference code: 2

PY - 2004

Y1 - 2004

N2 - A method for determining both velocity magnitude and angle in a synthetic aperture ultrasound system is described. The approach uses directional beamforming along the flow direction and cross-correlation to determine velocity magnitude. The angle of the flow is determined from the maximum normalized correlation calculated as a function of angle. The method is investigated using data measured by an experimental ultrasound scanner from a flow rig. A commercial 7 MHz linear array transducer is used and data are measured for flow angles of 60° and 90°. The velocity magnitude is determined with a precision of 0.36 % (60°) and 1.2 % (90°), respectively. The 60° angle is estimated with a bias of 0.54° and a standard deviation of 2.1°. For 90° the bias is 0.0003° and standard deviation 1.32°.

AB - A method for determining both velocity magnitude and angle in a synthetic aperture ultrasound system is described. The approach uses directional beamforming along the flow direction and cross-correlation to determine velocity magnitude. The angle of the flow is determined from the maximum normalized correlation calculated as a function of angle. The method is investigated using data measured by an experimental ultrasound scanner from a flow rig. A commercial 7 MHz linear array transducer is used and data are measured for flow angles of 60° and 90°. The velocity magnitude is determined with a precision of 0.36 % (60°) and 1.2 % (90°), respectively. The 60° angle is estimated with a bias of 0.54° and a standard deviation of 2.1°. For 90° the bias is 0.0003° and standard deviation 1.32°.

U2 - 10.1109/ISBI.2004.1398467

DO - 10.1109/ISBI.2004.1398467

M3 - Article in proceedings

SN - 0-7803-8389-3

SP - 33

EP - 36

BT - IEEE International Symposium on Biomedical Imaging 2004

PB - IEEE

T2 - 2004 IEEE International Symposium on Biomedical Imaging

Y2 - 15 April 2004 through 18 April 2004

ER -

Velocity vector estimation in synthetic aperture flow and B-mode imaging

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