• Acta Optica Sinica
  • Vol. 44, Issue 2, 0217001 (2024)
Changwei Zhang1, Hongbo Zou1, Weiming Qi2, Wenwu Zhu2, Liqiang Wang3, and Bo Yuan1、*
Author Affiliations
  • 1College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, Zhejiang , China
  • 2Zhejiang Center for Medical Device Evaluation, Hangzhou 310009, Zhejiang , China
  • 3Research Center for Humanoid Sensing, Zhejiang Lab , Hangzhou 311100, Zhejiang , China
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    DOI: 10.3788/AOS231224 Cite this Article Set citation alerts
    Changwei Zhang, Hongbo Zou, Weiming Qi, Wenwu Zhu, Liqiang Wang, Bo Yuan. Multi-Spectral Blood Oxygen Saturation Detection in Endoscopic Environment[J]. Acta Optica Sinica, 2024, 44(2): 0217001 Copy Citation Text show less
    Multispectral Monte Carlo simulation model of vascular tissue mimics
    Fig. 1. Multispectral Monte Carlo simulation model of vascular tissue mimics
    Monte Carlo simulation results. (a) Backscattering spectra at each blood oxygen saturation; (b) blood-tissue contrast spectra
    Fig. 2. Monte Carlo simulation results. (a) Backscattering spectra at each blood oxygen saturation; (b) blood-tissue contrast spectra
    AHP assigns weights to influencing factors
    Fig. 3. AHP assigns weights to influencing factors
    Disturbance deviation fraction of various influencing factors. (a) Error; (b) controllable conditions and weighted composite score
    Fig. 4. Disturbance deviation fraction of various influencing factors. (a) Error; (b) controllable conditions and weighted composite score
    Final score for each wavelength of RGB light. (a) Blue and green light; (b) red light
    Fig. 5. Final score for each wavelength of RGB light. (a) Blue and green light; (b) red light
    Blood oxygen analysis results in simulation. (a) In equidistant state; (b) in non-equidistant state
    Fig. 6. Blood oxygen analysis results in simulation. (a) In equidistant state; (b) in non-equidistant state
    Diagram of experimental setup
    Fig. 7. Diagram of experimental setup
    Multispectral images of phantom at four wavelengths of 450 nm, 525 nm, 630 nm, and 660 nm captured by laboratory endoscope. (a)-(d) d=2 cm,ξSO2=18%; (e)-(h) d=2 cm,ξSO2=98%; (i)-(l) d=3 cm,ξSO2=98%
    Fig. 8. Multispectral images of phantom at four wavelengths of 450 nm, 525 nm, 630 nm, and 660 nm captured by laboratory endoscope. (a)-(d) d=2 cm,ξSO2=18%; (e)-(h) d=2 cm,ξSO2=98%; (i)-(l) d=3 cm,ξSO2=98%
    Analysis of accuracy of blood oxygen saturation calculation formula. (a) In equidistant state; (b) in non-equidistant state
    Fig. 9. Analysis of accuracy of blood oxygen saturation calculation formula. (a) In equidistant state; (b) in non-equidistant state
    Deviation of blood oxygen saturation of different methods at 99% confidence level
    Fig. 10. Deviation of blood oxygen saturation of different methods at 99% confidence level
    Changwei Zhang, Hongbo Zou, Weiming Qi, Wenwu Zhu, Liqiang Wang, Bo Yuan. Multi-Spectral Blood Oxygen Saturation Detection in Endoscopic Environment[J]. Acta Optica Sinica, 2024, 44(2): 0217001
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