Abstract
New vibration pulses are proposed to increase the power of shear waves induced by ultrasound radiation force in a tissue region with a preferred spectral distribution. The new pulses are sparsely sampled from an orthogonal frequency wave composed of several sinusoidal signals. Those sinusoidal signals have different frequencies and are orthogonal to each other. The phase and amplitude of each sinusoidal signal are adjusted to control the shape of the orthogonal frequency wave. Amplitude of the sinusoidal signal is increased as its frequency increases to compensate for higher loss at higher frequency in the tissue region. The new vibration pulses and detection pulses can be interleaved for array transducer applications. The experimental results show that the new vibration pulses significantly increases induced tissue vibration with the same peak ultrasound intensity, compared with the binary vibration pulses.
| Original language | English (US) |
|---|---|
| Title of host publication | ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) |
| Pages | 859-863 |
| Number of pages | 5 |
| Volume | 2 |
| DOIs | |
| State | Published - 2010 |
| Event | ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010 - Vancouver, BC, Canada Duration: Nov 12 2010 → Nov 18 2010 |
Other
| Other | ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010 |
|---|---|
| Country | Canada |
| City | Vancouver, BC |
| Period | 11/12/10 → 11/18/10 |
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ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Orthogonal frequency ultrasound vibrometry. / Zheng, Yi; Yao, Aiping; Chen, Shigao D; Urban, Matthew W; Kinnick, Randy; Greenleaf, James F.
ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 2 2010. p. 859-863.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Orthogonal frequency ultrasound vibrometry
AU - Zheng, Yi
AU - Yao, Aiping
AU - Chen, Shigao D
AU - Urban, Matthew W
AU - Kinnick, Randy
AU - Greenleaf, James F
PY - 2010
Y1 - 2010
N2 - New vibration pulses are proposed to increase the power of shear waves induced by ultrasound radiation force in a tissue region with a preferred spectral distribution. The new pulses are sparsely sampled from an orthogonal frequency wave composed of several sinusoidal signals. Those sinusoidal signals have different frequencies and are orthogonal to each other. The phase and amplitude of each sinusoidal signal are adjusted to control the shape of the orthogonal frequency wave. Amplitude of the sinusoidal signal is increased as its frequency increases to compensate for higher loss at higher frequency in the tissue region. The new vibration pulses and detection pulses can be interleaved for array transducer applications. The experimental results show that the new vibration pulses significantly increases induced tissue vibration with the same peak ultrasound intensity, compared with the binary vibration pulses.
AB - New vibration pulses are proposed to increase the power of shear waves induced by ultrasound radiation force in a tissue region with a preferred spectral distribution. The new pulses are sparsely sampled from an orthogonal frequency wave composed of several sinusoidal signals. Those sinusoidal signals have different frequencies and are orthogonal to each other. The phase and amplitude of each sinusoidal signal are adjusted to control the shape of the orthogonal frequency wave. Amplitude of the sinusoidal signal is increased as its frequency increases to compensate for higher loss at higher frequency in the tissue region. The new vibration pulses and detection pulses can be interleaved for array transducer applications. The experimental results show that the new vibration pulses significantly increases induced tissue vibration with the same peak ultrasound intensity, compared with the binary vibration pulses.
UR - http://www.scopus.com/inward/record.url?scp=84881436696&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881436696&partnerID=8YFLogxK
U2 - 10.1115/IMECE2010-39095
DO - 10.1115/IMECE2010-39095
M3 - Conference contribution
AN - SCOPUS:84881436696
SN - 9780791844267
VL - 2
SP - 859
EP - 863
BT - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
ER -