Abstract
We report a novel extension of 840 nm wavelength- based spectral domain
optical tomography to in vivo/real-time human middle ear diagnosis. The system was
designed to access the middle ear region with a specifically dedicated handheld
probe. The real-time displaying feature was mandatory for in vivo imaging human
subject with the handheld probe, and the system could provide about 20 frames per
second for 2048 pixels by 1000 A-scans without using any graphics process units
under the Labview platform. The inner ear structure of a healthy male volunteer was
imaged with the developed system with the axial and lateral resolutions of
15 µm and 30 µm, respectively. The application of the OCT technology
to early diagnose otitis media(OM) is very promising and could be another extensive
branch in the OCT field because it provides the depth resolved image including
tympanic membrane (TM) and structures below TM whereas the conventional otoscope
technique only gives asurface image of the TM.
© 2011 Optical Society of Korea
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