Differentiation of moving scatterers with different velocities using trapezoid filter and pulse echo ultrasound

Yi Zheng, Aiping Yao, James F Greenleaf

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A trapezoid filter is introduced to map Doppler signals to spectral lines that associate to different velocities of scatterers. The filter completely rejects frequencies outside of a trapezoid area in the two-dimensional Fourier domain of Doppler RF signals. A three-dimensional Doppler image (or a movie of a two-dimensional image) with dimensions of location, Doppler spectrum, and time, can be obtained by listing the spectral lines along the beam axis. Gated integration of the Doppler image produces a coded map showing moving scatterers with different velocities. Experiments were performed using a peripheral vascular Doppler flow phantom. The method successfully differentiated the scatterers with different velocities at 29.8 cm/s and 14.6cm/s. This new approach has potential for characterizing moving scatterers having different velocities within a sample volume.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
EditorsS.C. Schneider, M. Levy, B.R. McAvoy
Pages1483-1487
Number of pages5
Volume2
StatePublished - 2000
Externally publishedYes
Event2000 IEEE Ultrasonics Symposium - San Juan, Puerto Rico
Duration: Oct 22 2000Oct 25 2000

Other

Other2000 IEEE Ultrasonics Symposium
CountryPuerto Rico
CitySan Juan
Period10/22/0010/25/00

Fingerprint

Ultrasonics
Experiments

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Zheng, Y., Yao, A., & Greenleaf, J. F. (2000). Differentiation of moving scatterers with different velocities using trapezoid filter and pulse echo ultrasound. In S. C. Schneider, M. Levy, & B. R. McAvoy (Eds.), Proceedings of the IEEE Ultrasonics Symposium (Vol. 2, pp. 1483-1487)

Differentiation of moving scatterers with different velocities using trapezoid filter and pulse echo ultrasound. / Zheng, Yi; Yao, Aiping; Greenleaf, James F.

Proceedings of the IEEE Ultrasonics Symposium. ed. / S.C. Schneider; M. Levy; B.R. McAvoy. Vol. 2 2000. p. 1483-1487.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zheng, Y, Yao, A & Greenleaf, JF 2000, Differentiation of moving scatterers with different velocities using trapezoid filter and pulse echo ultrasound. in SC Schneider, M Levy & BR McAvoy (eds), Proceedings of the IEEE Ultrasonics Symposium. vol. 2, pp. 1483-1487, 2000 IEEE Ultrasonics Symposium, San Juan, Puerto Rico, 10/22/00.
Zheng Y, Yao A, Greenleaf JF. Differentiation of moving scatterers with different velocities using trapezoid filter and pulse echo ultrasound. In Schneider SC, Levy M, McAvoy BR, editors, Proceedings of the IEEE Ultrasonics Symposium. Vol. 2. 2000. p. 1483-1487
Zheng, Yi ; Yao, Aiping ; Greenleaf, James F. / Differentiation of moving scatterers with different velocities using trapezoid filter and pulse echo ultrasound. Proceedings of the IEEE Ultrasonics Symposium. editor / S.C. Schneider ; M. Levy ; B.R. McAvoy. Vol. 2 2000. pp. 1483-1487
@inproceedings{1d648edbdac44f0995376249ec724e73,
title = "Differentiation of moving scatterers with different velocities using trapezoid filter and pulse echo ultrasound",
abstract = "A trapezoid filter is introduced to map Doppler signals to spectral lines that associate to different velocities of scatterers. The filter completely rejects frequencies outside of a trapezoid area in the two-dimensional Fourier domain of Doppler RF signals. A three-dimensional Doppler image (or a movie of a two-dimensional image) with dimensions of location, Doppler spectrum, and time, can be obtained by listing the spectral lines along the beam axis. Gated integration of the Doppler image produces a coded map showing moving scatterers with different velocities. Experiments were performed using a peripheral vascular Doppler flow phantom. The method successfully differentiated the scatterers with different velocities at 29.8 cm/s and 14.6cm/s. This new approach has potential for characterizing moving scatterers having different velocities within a sample volume.",
author = "Yi Zheng and Aiping Yao and Greenleaf, {James F}",
year = "2000",
language = "English (US)",
volume = "2",
pages = "1483--1487",
editor = "S.C. Schneider and M. Levy and B.R. McAvoy",
booktitle = "Proceedings of the IEEE Ultrasonics Symposium",

}

TY - GEN

T1 - Differentiation of moving scatterers with different velocities using trapezoid filter and pulse echo ultrasound

AU - Zheng, Yi

AU - Yao, Aiping

AU - Greenleaf, James F

PY - 2000

Y1 - 2000

N2 - A trapezoid filter is introduced to map Doppler signals to spectral lines that associate to different velocities of scatterers. The filter completely rejects frequencies outside of a trapezoid area in the two-dimensional Fourier domain of Doppler RF signals. A three-dimensional Doppler image (or a movie of a two-dimensional image) with dimensions of location, Doppler spectrum, and time, can be obtained by listing the spectral lines along the beam axis. Gated integration of the Doppler image produces a coded map showing moving scatterers with different velocities. Experiments were performed using a peripheral vascular Doppler flow phantom. The method successfully differentiated the scatterers with different velocities at 29.8 cm/s and 14.6cm/s. This new approach has potential for characterizing moving scatterers having different velocities within a sample volume.

AB - A trapezoid filter is introduced to map Doppler signals to spectral lines that associate to different velocities of scatterers. The filter completely rejects frequencies outside of a trapezoid area in the two-dimensional Fourier domain of Doppler RF signals. A three-dimensional Doppler image (or a movie of a two-dimensional image) with dimensions of location, Doppler spectrum, and time, can be obtained by listing the spectral lines along the beam axis. Gated integration of the Doppler image produces a coded map showing moving scatterers with different velocities. Experiments were performed using a peripheral vascular Doppler flow phantom. The method successfully differentiated the scatterers with different velocities at 29.8 cm/s and 14.6cm/s. This new approach has potential for characterizing moving scatterers having different velocities within a sample volume.

UR - http://www.scopus.com/inward/record.url?scp=0034579355&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034579355&partnerID=8YFLogxK

M3 - Conference contribution

VL - 2

SP - 1483

EP - 1487

BT - Proceedings of the IEEE Ultrasonics Symposium

A2 - Schneider, S.C.

A2 - Levy, M.

A2 - McAvoy, B.R.

ER -