Retinal oximetry with a multi-aperture camera

Paul Lemaillet, Art Lompado, Mohamed Ibrahim, Quan Dong Nguyen, Jessica C. Ramella-Roman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Oxygen saturation measurements in the retina is an essential measurement in monitoring eye health of diabetic patient. In this paper, preliminary result of oxygen saturation measurements for a healthy patient retina is presented. The retinal oximeter used is based on a regular fundus camera to which was added an optimized optical train designed to perform aperture division whereas a filter array help select the requested wavelengths. Hence, nine equivalent wavelength-dependent sub-images are taken in a snapshot which helps minimizing the effects of eye movements. The setup is calibrated by using a set of reflectance calibration phantoms and a lookup-table (LUT) is computed. An inverse model based on the LUT is presented to extract the optical properties of a patient fundus and further estimate the oxygen saturation in a retina vessel.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7550
DOIs
StatePublished - 2010
EventOphthalmic Technologies XX - San Francisco, CA, United States
Duration: Jan 23 2010Jan 25 2010

Other

OtherOphthalmic Technologies XX
CountryUnited States
CitySan Francisco, CA
Period1/23/101/25/10

Fingerprint

oximetry
Oximetry
retina
Retina
Table lookup
apertures
Cameras
cameras
Oxygen
saturation
oxygen
Oximeters
eye movements
Wavelength
Eye movements
Eye Movements
wavelengths
Calibration
division
health

Keywords

  • Fundus ophthalmoscope
  • Multi-aperture camera
  • Retinal oximetry

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Lemaillet, P., Lompado, A., Ibrahim, M., Nguyen, Q. D., & Ramella-Roman, J. C. (2010). Retinal oximetry with a multi-aperture camera. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 7550). [755021] https://doi.org/10.1117/12.841980

Retinal oximetry with a multi-aperture camera. / Lemaillet, Paul; Lompado, Art; Ibrahim, Mohamed; Nguyen, Quan Dong; Ramella-Roman, Jessica C.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7550 2010. 755021.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lemaillet, P, Lompado, A, Ibrahim, M, Nguyen, QD & Ramella-Roman, JC 2010, Retinal oximetry with a multi-aperture camera. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 7550, 755021, Ophthalmic Technologies XX, San Francisco, CA, United States, 1/23/10. https://doi.org/10.1117/12.841980
Lemaillet P, Lompado A, Ibrahim M, Nguyen QD, Ramella-Roman JC. Retinal oximetry with a multi-aperture camera. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7550. 2010. 755021 https://doi.org/10.1117/12.841980
Lemaillet, Paul ; Lompado, Art ; Ibrahim, Mohamed ; Nguyen, Quan Dong ; Ramella-Roman, Jessica C. / Retinal oximetry with a multi-aperture camera. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7550 2010.
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