Three‐dimensional static optical coherence elastography based on inverse compositional Gauss‐Newton digital volume correlation

The three‐dimensional (3D) mechanical properties characterization of tissue is essential for physiological and pathological studies, as biological tissue is mostly heterogeneous and anisotropic. A digital volume correlation (DVC)‐based 3D optical coherence elastography (OCE) method is developed to m...

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Bibliographic Details
Published in:Journal of biophotonics Vol. 12; no. 9; pp. e201800422 - n/a
Main Authors: Meng, Fanchao, Chen, Cheng, Hui, Shun, Wang, Jingbo, Feng, Yvlong, Sun, Cuiru
Format: Journal Article
Language:English
Published: Weinheim WILEY‐VCH Verlag GmbH & Co. KGaA 01.09.2019
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Subjects:
3D full‐field displacement
3D full‐field strain
Algorithms
Anisotropy
Biomechanics
Chickens
Compression
Compression tests
Cross correlation
digital volume correlation
Displacement
Mathematical analysis
Mechanical properties
optical coherence elastography
Optical Coherence Tomography
Polynomials
Poultry
Rigid structures
Rigid-body dynamics
Search algorithms
Soft tissues
Tensors
Theoretical analysis
Three dimensional bodies
Three dimensional motion
Tissues
digital volume correlation
optical coherence elastography
3D full-field displacement
3D full-field strain
optical coherence tomography
ISSN:1864-063X, 1864-0648, 1864-0648
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Summary:The three‐dimensional (3D) mechanical properties characterization of tissue is essential for physiological and pathological studies, as biological tissue is mostly heterogeneous and anisotropic. A digital volume correlation (DVC)‐based 3D optical coherence elastography (OCE) method is developed to measure the 3D displacement and strain tensors. The DVC algorithm includes a zero‐mean normalized cross‐correlation criterion‐based coarse search regime, an inverse compositional Gauss‐Newton fine search algorithm and a local ternary quadratic polynomial fitting strain calculation method. A 3D optical coherence tomography (OCT) scanning protocol is proposed through theoretical analysis and experimental verification. Measurement errors of the DVC‐based 3D OCE method are evaluated to be less than 2.0 μm for displacements and 0.30% for strains by rigid body motion experiments. The 3D displacements and strains of a phantom and a specimen of chicken breast tissue under compression are measured. Results of the phantom show a good agreement with theoretical analysis and tensile testing. The strains of the chicken breast tissue indicate anisotropic biomechanical properties. This study provides an effective method for 3D biomechanical property studies of soft tissue and improves the development of 3D OCE techniques. A three‐dimensional (3D) optical coherence elastography (OCE) technique is developed by integrating a specific coarse‐fine search digital volume correlation (DVC) algorithm and an optical coherence tomography (OCT) imaging. A guidance for choosing the optimal number of OCT line scans is proposed by theoretical analysis and experimental verification. This DVC‐based OCE method has the potential for high accurate 3D displacement and strain tensor measurement of heterogeneous and anisotropic biological tissue.
Bibliography:Funding information
National Natural Science Foundation of China, Grant/Award Number: 11602166; Natural Science Foundation of Tianjin City, Grant/Award Number: 16JCYBJC40500
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ISSN:1864-063X
1864-0648
1864-0648
DOI:10.1002/jbio.201800422