Real-time acoustic radiation force impulse imaging

Gianmarco F. Pinton; Stephen A. McAleavey; Jeremy J. Dahl; Kathryn R. Nightingale; Gregg E. Trahey

doi:10.1117/12.595846

Translator Disclaimer

12 April 2005 Real-time acoustic radiation force impulse imaging

Gianmarco F. Pinton; Stephen A. McAleavey; Jeremy J. Dahl; Kathryn R. Nightingale; Gregg E. Trahey

Author Affiliations +

Proceedings Volume 5750, Medical Imaging 2005: Ultrasonic Imaging and Signal Processing; (2005) https://doi.org/10.1117/12.595846
Event: Medical Imaging, 2005, San Diego, California, United States

Abstract

Acoustic Radiation Force Impulse (ARFI) imaging uses short duration acoustic pulses to generate and subsequently determine localized displacements in tissue. Time delay estimators, such as normalized cross correlation and phase shift estimation, form the computational basis for ARFI imaging. This paper considers these algorithms and the effects of noise, interpolation, and quadrature demodulation on the accuracy of the time delay estimates. These results are used to implement a real-time ARFI imaging system and in an ex vivo liver ablation study.

Citation Download Citation

Gianmarco F. Pinton, Stephen A. McAleavey, Jeremy J. Dahl, Kathryn R. Nightingale, and Gregg E. Trahey "Real-time acoustic radiation force impulse imaging", Proc. SPIE 5750, Medical Imaging 2005: Ultrasonic Imaging and Signal Processing, (12 April 2005); https://doi.org/10.1117/12.595846

ACCESS THE FULL ARTICLE