Reference TypeConference Proceedings
Citation KeySilvaUrba:2005:ThCoSi
Author1 Silva, Glauber
2 Urban, Matthew
Affiliation1 Universidade Federal de Alagoas
2 Mayo Clinic College of Medicine
TitleImage formation of multifrequency vibro-acoustography: theory and computational simulations
Conference NameBrazilian Symposium on Computer Graphics and Image Processing, 18 (SIBGRAPI)
EditorRodrigues, Maria Andréia Formico
Frery, Alejandro César
Book TitleProceedings
Date9-12 Oct. 2005
Publisher CityLos Alamitos
PublisherIEEE Computer Society
Conference LocationNatal
KeywordsVibro-acoustography, Dynamic radiation stress, Image formation.
AbstractThis paper presents an extension of vibro-acoustography imaging technique. The standard technique relies on the single-frequency dynamic radiation force (or stress) produced by a highly focused dual-frequency ultrasound beam. We propose a multifrequency vibro-acoustography method based on the radiation stress generated by a beam with multiple frequencies. The system point-spread function (PSF) is obtained in terms of the acoustic emission by a point-target in response to the employed radiation stress. The PSF is evaluated for an eight- and a sixteen-element sector array transducers. Three phantom images are used to show how the system transforms them into observed data. Considering only visual criteria such as contrast and resolution, simulations show the sixteen-element sector transducer renders better images.
Tertiary TypeFull Paper
Size1179 KiB
Number of Files1
Target FilesilvaG_vibroacoustography.pdf
Last Update2005: administrator
Metadata Last Update2020: administrator {D 2005}
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History2005-07-04 16:23:24 :: Glauber -> banon ::
2005-07-04 21:10:13 :: banon -> Glauber ::
2008-07-17 14:10:58 :: Glauber -> banon ::
2008-08-26 15:17:01 :: banon -> administrator ::
2009-08-13 20:37:43 :: administrator -> banon ::
2010-08-28 20:01:16 :: banon -> administrator ::
2020-02-19 03:19:07 :: administrator -> :: 2005
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Access Date2020, Nov. 27