Tissue Elasticity Estimation with Optical Coherence Elastography: Toward Mechanical Characterization of In Vivo Soft Tissue

2005 ◽  
Vol 33 (11) ◽  
pp. 1631-1639 ◽  
Author(s):  
Ahmad S. Khalil ◽  
Raymond C. Chan ◽  
Alexandra H. Chau ◽  
Brett E. Bouma ◽  
Mohammad R. Kaazempur Mofrad
Keyword(s):  
Soft Tissue ◽  
Mechanical Characterization ◽  
Optical Coherence ◽  
Tissue Elasticity

About Puncture Testing Applied for Mechanical Characterization of Fetal Membranes

2014 ◽  
Vol 136 (11) ◽  
Author(s):  
Wilfried Bürzle ◽  
Edoardo Mazza ◽  
John J. Moore
Keyword(s):  
Deformation Behavior ◽  
Mechanical Characterization ◽  
Ex Vivo ◽  
Fetal Membrane ◽  
Membrane Rupture ◽  
Resistance To Deformation ◽  
Ex Vivo Testing ◽  
Insight Into

Puncture testing has been applied in several studies for the mechanical characterization of human fetal membrane (FM) tissue, and significant knowledge has been gained from these investigations. When comparing results of mechanical testing (puncture, inflation, and uniaxial tension), we have observed discrepancies in the rupture sequence of FM tissue and significant differences in the deformation behavior. This study was undertaken to clarify these discrepancies. Puncture experiments on FM samples were performed to reproduce previous findings, and numerical simulations were carried out to rationalize particular aspects of membrane failure. The results demonstrate that both rupture sequence and resistance to deformation depend on the samples' fixation. Soft fixation leads to slippage in the clamping, which reduces mechanical loading of the amnion layer and results in chorion rupturing first. Conversely, the stiffer, stronger, and less extensible amnion layer fails first if tight fixation is used. The results provide a novel insight into the interpretation of ex vivo testing as well as in vivo membrane rupture.

Mechanical Characterization of Soft Tissue Constituents for Cancer Detection

2019 ◽  
Vol 39 (6) ◽  
pp. 817-826
Author(s):  
Shima Zaeimdar ◽  
Parvind Kaur Grewal ◽  
Zahra Haeri ◽  
Farid Golnaraghi
Keyword(s):  
Soft Tissue ◽  
Cancer Detection ◽  
Mechanical Characterization

Towards mechanical characterization of granular biofilms by optical coherence elastography measurements of circumferential elastic waves

Soft Matter ◽  
2019 ◽  
Vol 15 (28) ◽  
pp. 5562-5573 ◽  
Author(s):  
Hong-Cin Liou ◽  
Fabrizio Sabba ◽  
Aaron I. Packman ◽  
Alex Rosenthal ◽  
George Wells ◽  
...  
Keyword(s):  
Elastic Waves ◽  
Viscoelastic Properties ◽  
Mechanical Characterization ◽  
Optical Coherence ◽  
Model Based

This paper presents a metrology approach combining optical coherence elastography measurements of circumferential elastic waves and model-based inverse analyses to nondestructively characterize the viscoelastic properties of soft spherical gels.

Fully automatic segmentation and characterization of in vivo esophageal tissue by optical coherence tomography (Conference Presentation)

2016 ◽  
Author(s):  
Giovanni Jacopo J. Ughi ◽  
Michalina J. Gora ◽  
Anne-Fre Swager ◽  
Mireille Rosenberg ◽  
Jenny Sauk ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Automatic Segmentation ◽  
Optical Coherence ◽  
Esophageal Tissue ◽  
Fully Automatic
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