Advanced

Ultrasound Doppler Vector Tomography - Measurements of Directional Blood Flow

Jansson, Tomas LU ; Almqvist, Monica LU ; Stråhlén, Kent; Eriksson, Roger; Sparr, Gunnar LU ; Persson, Hans W LU and Lindström, Kjell LU (1997) In Ultrasound in Medicine and Biology 23(1). p.47-57
Abstract
An experimental system has been developed to verify the possibility of detecting flow activity using a technique called ultrasound Doppler vector tomography. A tomography algorithm is used to reconstruct blood flow vector fields using data from computer-controlled ultrasound continuous-wave Doppler scanning equipment. The result is a picture in which the brightness variations represent the reconstructed values of the curl of the velocity field (del x v). Continuous ultrasound is transmitted into a region with flow activity and the Doppler-shifted signals are received. To obtain measurement data suited for fan beam tomography, the scanning is performed in a plane from points encircling the region. Reconstructions have been achieved using... (More)
An experimental system has been developed to verify the possibility of detecting flow activity using a technique called ultrasound Doppler vector tomography. A tomography algorithm is used to reconstruct blood flow vector fields using data from computer-controlled ultrasound continuous-wave Doppler scanning equipment. The result is a picture in which the brightness variations represent the reconstructed values of the curl of the velocity field (del x v). Continuous ultrasound is transmitted into a region with flow activity and the Doppler-shifted signals are received. To obtain measurement data suited for fan beam tomography, the scanning is performed in a plane from points encircling the region. Reconstructions have been achieved using measurement data from two different flow phantoms. A comparison between the experimental results and simulations shows good conformity. Copyright (C) 1997 World Federation for Ultrasound in Medicine & Biology. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
ultrasound, Doppler, tomography, blood flow, vector fields, continuous wave, vorticity, curl
in
Ultrasound in Medicine and Biology
volume
23
issue
1
pages
47 - 57
publisher
Elsevier
external identifiers
  • scopus:0031041787
ISSN
0301-5629
DOI
10.1016/S0301-5629(96)00185-8
language
English
LU publication?
yes
id
b61774d4-2717-4546-8c2b-52ed506b208e (old id 788229)
date added to LUP
2008-09-01 13:21:32
date last changed
2017-01-01 07:34:47
@article{b61774d4-2717-4546-8c2b-52ed506b208e,
  abstract     = {An experimental system has been developed to verify the possibility of detecting flow activity using a technique called ultrasound Doppler vector tomography. A tomography algorithm is used to reconstruct blood flow vector fields using data from computer-controlled ultrasound continuous-wave Doppler scanning equipment. The result is a picture in which the brightness variations represent the reconstructed values of the curl of the velocity field (del x v). Continuous ultrasound is transmitted into a region with flow activity and the Doppler-shifted signals are received. To obtain measurement data suited for fan beam tomography, the scanning is performed in a plane from points encircling the region. Reconstructions have been achieved using measurement data from two different flow phantoms. A comparison between the experimental results and simulations shows good conformity. Copyright (C) 1997 World Federation for Ultrasound in Medicine & Biology.},
  author       = {Jansson, Tomas and Almqvist, Monica and Stråhlén, Kent and Eriksson, Roger and Sparr, Gunnar and Persson, Hans W and Lindström, Kjell},
  issn         = {0301-5629},
  keyword      = {ultrasound,Doppler,tomography,blood flow,vector fields,continuous wave,vorticity,curl},
  language     = {eng},
  number       = {1},
  pages        = {47--57},
  publisher    = {Elsevier},
  series       = {Ultrasound in Medicine and Biology},
  title        = {Ultrasound Doppler Vector Tomography - Measurements of Directional Blood Flow},
  url          = {http://dx.doi.org/10.1016/S0301-5629(96)00185-8},
  volume       = {23},
  year         = {1997},
}