Notification:
We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

Acoustic radiation force impulse imaging: ex vivo and in vivo demonstration of transient shear wave propagation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Nightingale, K. ; Dept. of Biomed. Eng., Duke Univ., Durham, NC, USA ; Stutz, D. ; Bentley, R. ; Trahey, G.

Acoustic radiation force impulse (ARFI) imaging utilizes brief, high energy, focused acoustic pulses to generate radiation force in remote locations in tissue, and conventional diagnostic ultrasound methods to detect the resulting tissue displacements in order to provide information about the mechanical properties of tissue. Tissue displacement magnitude is inversely related to local tissue stiffness, and the temporal response of the tissue is related to its viscosity. In addition, ARM imaging allows visualization of the transient shear waves generated by the impulsive radiation force, whose propagation velocity and attenuation reflect the local tissue properties. ARFI imaging is implemented on a modified Siemens Elegra scanner with a 7.5 MHz linear array transducer using radiation force application times ranging from .03 to 1 msec. Good correlation is observed between the matched pathology, B-mode, and ARM images of ex vivo breast and cervical tissues. ARFI image representation of tissue stiffness is consistent with manual palpation. In addition, localized radiation force induced shear wave propagation is visualized by ARFI imaging in phantoms, ex vivo breast tissue, and in vivo abdominal tissue. Shear wave speeds ranging from 1 to 5 m/s are observed in abdominal tissue in vivo. These results suggest that ARM imaging holds clinical promise.

Published in:

Biomedical Imaging, 2002. Proceedings. 2002 IEEE International Symposium on

Date of Conference:

2002