A Novel Ultrasonic Imaging Method for Remote Palpation of Breast Tissues

Abstract

A method of acoustic remote palpation, capable of imaging local variations in the mechanical properties of soft tissue is under investigation. Acoustic Radiation Force Impulse (ARFI) imaging uses focused ultrasound to apply localized radiation force to small volumes of tissue (2 mm3) for short durations (less than 1 msec) and the resulting tissue displacements are mapped using ultrasonic correlation based methods. The tissue displacements are inversely proportional to the stiffness of the tissue, and thus a stiffer region of tissue exhibits smaller displacements than a more compliant region. Due to the short duration of the force application, this method provides information about the mechanical impulse response of the tissue, which reflects variations in tissue visco-elastic characteristics.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2001
Accession Number
ADA400056

Entities

People

  • Gregg E. Trahey

Organizations

  • Duke University

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Acoustic Waves
  • Acoustics
  • Computational Fluid Dynamics
  • Data Processing
  • Detection
  • Diagnostic Imaging
  • Differential Equations
  • Elastic Properties
  • Electronic Mail
  • Heat Transfer
  • Mechanical Properties
  • Medical Personnel
  • Modulus Of Elasticity
  • Three Dimensional
  • Two Dimensional
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Mathematics or Statistics
  • Medical Imaging.
  • Structural Dynamics.