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Publisher DOI: 10.1515/cdbme-2015-0054
Title: Towards contactless optical coherence elastography with acoustic tissue excitation
Language: English
Authors: Düwel, Dino 
Otte, Christoph 
Schulz, Kevin 
Saathoff, Thore Lübbo Ilmari 
Schlaefer, Alexander 
Keywords: Elastography; Mechanical Tissue Properties; OCE; OCT; Optical Coherence Tomography; Tissue Classification; Vibrometry
Issue Date: 15-Sep-2015
Publisher: De Gruyter
Source: Current Directions in Biomedical Engineering 1 (1): 215-219 (2015)
Abstract (english): 
Elastography presents an interesting approach to complement image data with mechanical tissue properties. Typically, the tissue is excited by direct contact to a probe. We study contactless elastography based on optical coherence tomography (OCT) and dynamic acoustic tissue excitation with airborne sound. We illustrate the principle and an implementation using sound waves of 135 Hz to excite the tissue. The displacement is measured and results of several tests indicate the feasibility to obtain a qualitative measure of the mechanical tissue properties. The approach is interesting for optical palpation, e.g., to enhance navigation and tissue characterization in minimally invasive and robot-assisted surgery.
DOI: 10.15480/882.3730
ISSN: 2364-5504
Journal: Current directions in biomedical engineering 
Institute: Medizintechnische und Intelligente Systeme E-1 
Document Type: Article
Project: Mechatronisch geführte Mikronavigation von Nadeln in Weichgewebe 
Funded by: Deutsche Forschungsgemeinschaft (DFG) 
License: CC BY-NC-ND 3.0 (Attribution-NonCommercial-NoDerivatives) CC BY-NC-ND 3.0 (Attribution-NonCommercial-NoDerivatives)
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