Viscoelastic tissue property measurement using high frequency ultrasound

Dalong Liu, Emad S. Ebbini

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

5 Scopus citations

Abstract

A high frequency ultrasound system for viscoelastic tissue property measurenment is being developed. A dual-element transducer was used for localized application of acoustic radiation force (ARF) pulses and monitoring of the induced shift. M-mode RF data was evaluated using a correlation based shift estimation algorithm [1]. These displacements are used as input to an on-line tracking of the shear modulus and shear viscosity using an extended Kalman filter (EKF) which utilizes a second order constitutive model of viscoelastic response with unknown parameters. The algorithm was tested using tissue mimicking phantoms described by Nightingale et al [2], we also demonstrate the feasibility of evaluting the effect of drug in in-vitro porcine eye.

Original languageEnglish (US)
Title of host publication2007 4th IEEE International Symposium on Biomedical Imaging
Subtitle of host publicationFrom Nano to Macro - Proceedings
Pages892-895
Number of pages4
DOIs
StatePublished - Nov 27 2007
Event2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro; ISBI'07 - Arlington, VA, United States
Duration: Apr 12 2007Apr 15 2007

Publication series

Name2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings

Other

Other2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro; ISBI'07
Country/TerritoryUnited States
CityArlington, VA
Period4/12/074/15/07

Keywords

  • FPGA
  • Kalman filtering
  • Ultrasonics

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