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Application of Multispectral Imaging in the Human Tympanic Membrane
Tien Tran Van1,2, Mi Lu Thi Thao1,2, Linh Bui Mai Quynh1
1Ho Chi Minh City University of Technology, Faculty of Applied Science, Department of Applied Physics, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700 000, Vietnam.
Journal of Healthcare Engineering
|October 5, 2020
Summary
Multispectral imaging shows promise for middle ear diagnostics. A pilot study using a modified otoscope found 630nm light significantly enhances contrast of the tympanic membrane and malleus.
Area of Science:
- Biomedical Optics
- Medical Imaging
- Otolaryngology
Background:
- Multispectral imaging (MSI) is effective for tissue analysis, but its application in middle ear diagnostics, specifically for enhancing tympanic membrane (TM) visualization, is underexplored.
- Current imaging methods like CT, OCT, and ODT are costly, complex, and time-consuming, limiting their use in routine middle ear examinations.
Purpose of the Study:
- To investigate the potential of multispectral imaging to improve contrast between the tympanic membrane, malleus, and surrounding middle ear tissues.
- To evaluate the feasibility of using a modified otoscope with LED illumination for MSI in middle ear diagnosis.
Main Methods:
- A pilot study captured multiwavelength images of the tympanic membrane using an otoscope with LED light sources at 450nm, 530nm, and 630nm.
- Analysis of image intensity and histograms was performed to assess contrast differences under varying spectral illuminations.
Main Results:
- Illumination at 630nm demonstrated a clear enhancement in the intensity contrast of the tympanic membrane and malleus against the surrounding middle ear area.
- The findings suggest that spectral differences in light absorption and scattering by tissue constituents are key to achieving this contrast.
Conclusions:
- Multispectral imaging, particularly with 630nm illumination, offers a promising, cost-effective approach to enhance visualization of middle ear structures.
- This technique could significantly aid in precise boundary determination and segmentation of the tympanic membrane for improved diagnostic capabilities.
