20 February 2010 Preliminary optical coherence tomography investigation of the temporo-mandibular joint disc
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Proceedings Volume 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV; 75542G (2010); doi: 10.1117/12.842783
Event: SPIE BiOS, 2010, San Francisco, California, United States
Abstract
Aim and objectives. The morphology and position of the temporo-mandibular disc are key issues in the diagnosis and treatment of arthrogenous temporo-mandibular disorders. Magnetic resonance imaging and arthroscopy are used today to identify: flattening of the pars posterior of the disc, perforation and/or adhesions in the pars intermedia of the disc and disc displacements. The present study proposes the investigation of the temporo-mandibular joint disc by optical coherence tomography (OCT). Material and methods. 8 human temporo-mandibular joint discs were harvested from dead subjects, under 40 year of age, and conserved in formalin. They had a normal morphology, with a thicker pars posterior (2,6 mm on the average) and a thinner pars intermedia (1mm on the average). We investigated the disc samples using two different OCT systems: an en-face OCT (time domain (TD)-OCT) system, working at 1300 nm (C-scan and B-scan mode) and a spectral OCT system (a Fourier domain (FD)-OCT) system , working at 840 nm (B-scan mode). Results. The OCT investigation of the temporo-mandibular joint discs revealed a homogeneous microstructure. The longer wavelength of the TD-OCT offers a higher penetration depth (2,5 mm in air), which is important for the analysis of the pars posterior, while the FD-OCT is much faster. Conclusions: OCT is a promising imaging method for the microstructural characterization of the temporo-mandibular disc.
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Corina Mărcăuteanu, Enikö Demjan, Cosmin Sinescu, Meda Negrutiu, Adrian Motoc, Rodica Lighezan, Liliana Vasile, Mike Hughes, Adrian Bradu, George Dobre, Adrian Gh. Podoleanu, "Preliminary optical coherence tomography investigation of the temporo-mandibular joint disc", Proc. SPIE 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV, 75542G (20 February 2010); doi: 10.1117/12.842783; https://doi.org/10.1117/12.842783
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KEYWORDS
Optical coherence tomography

Collagen

Tissues

Magnetic resonance imaging

Microscopy

Medicine

Natural surfaces

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