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- Publisher
- de Gruyter
- Copyright
- Copyright © 2015 by the
- ISSN
- 2364-5504
- eISSN
- 2364-5504
- DOI
- 10.1515/cdbme-2015-0054
- Publisher site
- See Article on Publisher Site
Abstract
Abstract 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.
Journal
Current Directions in Biomedical Engineering – de Gruyter
Published: Sep 1, 2015