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Title: Measurement of the temperature dependence of Young's modulus of cartilage by phase-sensitive optical coherence elastography

The development of an effective system to monitor the changes in the elastic properties of cartilage tissue with increasing temperature in laser reconstruction is an urgent practical task. In this paper, the use of phase-sensitive optical coherence elastography for detection of elastic waves in the sample has allowed Young's modulus of cartilage tissue to be measured directly during heating. Young's modulus was calculated from the group velocity of propagation of elastic waves excited by means of a system supplying focused air pulses. The measurement results are in agreement with the results of measurements of the modulus of elasticity under mechanical compression. The technique developed allows for noninvasive measurements; its development is promising for the use in vivo. (laser biophotonics)
Authors:
; ; ;  [1] ;  [2] ;  [3]
  1. Department of Biomedical Engineering, University of Houston, Houston, Texas (United States)
  2. Department of Physics, M.V. Lomonosov Moscow State University (Russian Federation)
  3. Institute of Laser and Information Technologies, Russian Academy of Sciences, Troitsk, Moscow Region (Russian Federation)
Publication Date:
OSTI Identifier:
22395825
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 44; Journal Issue: 8; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CARTILAGE; ELASTICITY; LASERS; TEMPERATURE DEPENDENCE; VELOCITY; WAVE PROPAGATION; YOUNG MODULUS