Quantitative elastography provided by surface acoustic waves measured by phase-sensitive optical coherence tomography.
Chunhui Li, Guangying Guan, Xi Cheng, Zhihong Huang, Ruikang K Wang
Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA.
Optics letters 2012 Feb 15We report on a quantitative elastography technique achieved by combining phase-sensitive optical coherence tomography (PhS-OCT) with the surface acoustic wave (SAW) method. Different from traditional optical coherence elastography, the elastography is achieved by impulse-stimulated SAW, rather than by shear waves. PhS-OCT serves not only as a detector to measure SAW signals but also as a means to provide a cross-sectional image of the sample. The experimental results indicate that the combination of PhS-OCT with SAW is feasible to provide quantitative elastography of heterogeneous tissue samples.
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Chunhui Li, Guangying Guan, Xi Cheng, Zhihong Huang, Ruikang K Wang. Quantitative elastography provided by surface acoustic waves measured by phase-sensitive optical coherence tomography. Optics letters. 2012 Feb 15;37(4):722-4
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PMID: 22344160
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