Extratympanic observation of middle ear structure using a refractive index matching material (glycerol) and an infrared camera
| Autor: | Eui-Kyung Goh, Kyong-Myong Chon, Il-Woo Lee, Soo-Geun Wang, Soo-Keun Kong |
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| Rok vydání: | 2014 |
| Předmět: |
Glycerol
Materials science Infrared Infrared Rays Biomedical Engineering Ear Middle Biomaterials chemistry.chemical_compound Ossicle otorhinolaryngologic diseases medicine Humans Middle ear structure Refractive index matching Stapes Analysis of Variance Anatomy Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Footplate Refractometry medicine.anatomical_structure chemistry Middle ear Female Biomedical engineering |
| Zdroj: | Journal of biomedical optics. 19(5) |
| ISSN: | 1560-2281 |
| Popis: | High-resolution computed tomography has been used mainly in the diagnosis of middle ear disease, such as high-jugular bulb, congenital cholesteatoma, and ossicular disruption. However, certain diagnoses are confirmed through exploratory tympanotomy. There are few noninvasive methods available to observe the middle ear. The purpose of this study was to investigate the effect of glycerol as a refractive index matching material and an infrared (IR) camera system for extratympanic observation. 30% glycerol was used as a refractive index matching material in five fresh cadavers. Each material was divided into four subgroups; GN (glycerol no) group, GO (glycerol out) group, GI (glycerol in) group, and GB (glycerol both) group. A printed letter and middle ear structures on the inside tympanic membrane were observed using a visible and IR ray camera system. In the GB group, there were marked a transilluminated letter or an ossicle on the inside tympanic membrane. In particular, a footplate of stapes was even transilluminated using the IR camera system in the GB group. This method can be useful in the diagnosis of diseases of the middle ear if it is clinically applied through further studies. |
| Databáze: | OpenAIRE |
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