@inproceedings{dffb8165a8df4ba8a4e1967315b84ca4,
title = "Stress field formation for multifrequency vibro-acoustography",
abstract = "A multifrequency vibro-acoustography method is proposed that uses a multifrequency radiation stress produced by an array transducer driven with N ultrasound frequencies. The N ultrasound beams interfere at the system focus producing up to N(N-1)/2 unique difference frequencies in the radiation stress. The objective of this paper is to present the image formation theory in multifrequency vibro-acoustography systems with experimental validation. The radiation stress generated by sector array and annular array transducer systems is analyzed theoretically. We also used a computer phantom with small spheres to demonstrate the usefulness of multifrequency vibro-acoustography for microcalcification detection in breast imaging. The proposed method holds the potential for a large gain of information with no increase in scanning time when applied to conventional vibro-acoustography systems.",
keywords = "Imaging, Multifrequency, Stress field, Ultrasound, Vibro-acoustography",
author = "Urban, {Matthew W.} and Kinnick, {Randall R.} and Mostafa Fatemi and Greenleaf, {James F.} and Silva, {Glauber T.}",
year = "2005",
doi = "10.1109/ULTSYM.2005.1603338",
language = "English (US)",
isbn = "0780393821",
series = "Proceedings - IEEE Ultrasonics Symposium",
pages = "2275--2278",
booktitle = "2005 IEEE Ultrasonics Symposium",
note = "2005 IEEE Ultrasonics Symposium ; Conference date: 18-09-2005 Through 21-09-2005",
}