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Impact of nonlinear distortion on acoustic radiation force elastography.

Abstract:

High-intensity focused ultrasound (HIFU) produces an acoustic radiation force that induces tissue displacement, which can be measured by monitoring time shifts in the backscattered signals from interrogation pulses. If the pulse occurs simultaneously with the HIFU, the arrival time of the backscatter will be biased because nonlinearity associated with the HIFU changes the local sound speed. Measurements of the pressure field using 1.1 MHz HIFU and a 7.5 MHz pulse in water exhibited a nonlinea...

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Publication status:
Published

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Authors


Draudt, AB More by this author
Cleveland, RO More by this author
Journal:
Ultrasound in medicine and biology
Volume:
37
Issue:
11
Pages:
1874-1883
Publication date:
2011-11-05
DOI:
EISSN:
1879-291X
ISSN:
0301-5629
URN:
uuid:2d79d3ab-d113-4943-9925-3595d0d906e7
Source identifiers:
327660
Local pid:
pubs:327660

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