Dynamic Quasi-Elastic Light Scattering Measurement of Biological Tissue
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Abstract
During laser irradiation, mechanically deformed cartilage undergoes a temperature dependent phase transformation resulting in accelerated stress relaxation. Clinically, laser-assisted cartilage reshaping may be used to recreate the underlying cartilaginous framework in structures such as ear, larynx, trachea, and nose. Therefore, research and identification of the biophysical transformations in cartilage accompanying laser heating are valuable to identify critical laser dosimetry and phase transformation of cartilage for many clinical applications. Quasi-elastic light scattering was investigated using Ho:YAG laser (λ=2.12㎛;tp ~ 450㎲) and Nd:YAG Laser (λ=1.32㎛;tp ~ 700㎲) for heating sources and He:Ne(λ=632.8 nm) laser, high-power diode pumped laser (λ=532 nm), and Ti:Al2O3 femtosecond laser (λ= 850 nm) for light scattering sources. A spectrometer and infrared radiometric sensor were used to monitor the backscattered light spectrum and transient temperature changes from cartilage following laser irradiation. Analysis of the optical, thermal, and quasi-elastic light scattering properties may indicate internal dynamics of proteoglycan movement within the cartilage framework during laser irradiation.
참고문헌 (16)
- Mow VC, "Injury and repair of the musculoskeletal soft tissues American Academy of Orthopaedic Surgeons" (1988)
- Sobol EN, "Phase Transformations and Ablation in Laser-Treated Solids" (1998), John Wiley & Sons
- Sobol EN, "Laser shaping of cartilage", 2128, pp.43~49 (1994)
- Sobol EN, "Study of cartilage reshaping with holmium laser", 2623, pp.544~547 (1996)
- Sobol E.N, "Phenomenon of cartilage shaping using moderate heating and its applications in otorhinolaryngology", 2623, pp.548~552 (1996)
- Sobol E.N, "Stress relaxation and cartilage shaping under laser radiation", 2681, pp.358~363 (1996)
- .Sobol EN, "Theoretical modeling of heating and structure alterations in cartilage under laser radiation with regard of water evaporation and diffusion dominance", 3254, pp.54~63 (1998)
- Wong BJF, "Stress relaxation of Porcine Septal Cartilage During Nd:YAG (m) Laser Irradiation: Mechanical, Optical, and Thermal Response", 3(4), pp.409~414 (1998)
- Wong BJF, "Critical temperature transitions in laser mediated cartilage reshaping", 3425, pp.161~172 (1998)
- Wong BJF, "Thermo-optical response of cartilage during feedback controlled laser-assisted reshaping", 2970, pp.380~391 (1997)
- Wong BJF, "Measurement of radiometric surface temperature and integrated back-scattered light intensity during feedback controlled laser-assisted cartilage reshaping", 13, pp.66~72 (1998)
- Cummins HZ, "Light Scattering near Phase Transitions" (1983), North-Holland Publishing
- van de Hulst HC, "Light Scattering by Small Particles" (1957), John wiley &Sons Inc.
- Reihanian H, "Hydrodynamic properties of proteoglycan dubunit from bovine nasal cartilage. self-association behavior and interaction with hyaluronate studied by laser light scattering", 18, pp.1727~1747 (1979)
- Kovach IS, "Small-angle HeNe laser light scatter and the compressive modulus of articular cartilage", 15, pp.437~441 (1997)
- Wang, Zhi, "Laser-assisted cartilage reshaping: in vitro and in vivo animal studies", 2395, pp.296~302 (1995)