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Proceedings Paper

Robust strain mapping in optical coherence elastography by combining local phase-resolved measurements and cumulative displacement tracking
Author(s): Vladimir Y. Zaitsev; Alexander L. Matveyev; Lev A. Matveev; Grigory V. Gelikonov; Ekaterina Gubarkova; Natalia D. Gladkova; Alex Vitkin
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Paper Abstract

We report a novel hybrid method of robust strain mapping in compressional optical coherence elastography using combined phase measurements on sub-wavelength-scale and cumulative pixel-scale displacement tracking. This hybrid nature significantly extends the range of measurable displacements and strains in comparison with conventional direct phase-resolved measurements. As a result, the proposed strain-mapping method exhibits significantly increased robustness with respect to both additive noise and decorrelation noise produced by displacements and strains. The main advantages of the proposed approach are illustrated by numerical simulations. Experimental examples of obtained strain maps for phantoms and real biological tissues are also presented.

Paper Details

Date Published: 15 March 2016
PDF: 9 pages
Proc. SPIE 9710, Optical Elastography and Tissue Biomechanics III, 97100O (15 March 2016); doi: 10.1117/12.2211117
Show Author Affiliations
Vladimir Y. Zaitsev, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Nizhny Novgorod State Univ. (Russian Federation)
Alexander L. Matveyev, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Lev A. Matveev, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Grigory V. Gelikonov, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Ekaterina Gubarkova, Nizhny Novgorod State Medical Academy (Russian Federation)
Natalia D. Gladkova, Nizhny Novgorod State Medical Academy (Russian Federation)
Alex Vitkin, Nizhny Novgorod State Medical Academy (Russian Federation)
Univ. of Toronto and Univ. Health Network (Canada)


Published in SPIE Proceedings Vol. 9710:
Optical Elastography and Tissue Biomechanics III
Kirill V. Larin; David D. Sampson, Editor(s)

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