Analysis of light absorption with variation of epidermis thickness in human skin model using Monte Carlo simulation

Halim, Abdul; Laili, M. H.; Rusop, M.

doi:10.1063/1.5124638

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…The behaviour of light in human skin using the Monte Carlo technique has been explored in the literature [12][13][14][15][16][17][18][19][20][21][22][23][24][25] , with a main focus on the effect of melanin and skin pigmentation on PPG [20][21][22][23][24][25] . Computational studies are vital for understanding the effect of optical (e.g.…”

Section: Monte Carlo Simulation Of the Effect Of Melanin Concentratio...mentioning

confidence: 99%

Monte Carlo simulation of the effect of melanin concentration on light-tissue interactions in transmittance and reflectance finger photoplethysmography

Al-Halawani,

Qassem,

Kyriacou

2024

Sci Rep

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Photoplethysmography (PPG) uses light to detect volumetric changes in blood, and is integrated into many healthcare devices to monitor various physiological measurements. However, an unresolved limitation of PPG is the effect of skin pigmentation on the signal and its impact on PPG based applications such as pulse oximetry. Hence, an in-silico model of the human finger was developed using the Monte Carlo (MC) technique to simulate light interactions with different melanin concentrations in a human finger, as it is the primary determinant of skin pigmentation. The AC/DC ratio in reflectance PPG mode was evaluated at source-detector separations of 1 mm and 3 mm as the convergence rate (Q), a parameter that quantifies the accuracy of the simulation, exceeded a threshold of 0.001. At a source-detector separation of 3 mm, the AC/DC ratio of light skin was 0.472 times more than moderate skin and 6.39 than dark skin at 660 nm, and 0.114 and 0.141 respectively at 940 nm. These findings are significant for the development of PPG-based sensors given the ongoing concerns regarding the impact of skin pigmentation on healthcare devices.

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Section: Monte Carlo Simulation Of the Effect Of Melanin Concentratio...mentioning

confidence: 99%

Monte Carlo simulation of the effect of melanin concentration on light-tissue interactions in transmittance and reflectance finger photoplethysmography

Al-Halawani,

Qassem,

Kyriacou

2024

Sci Rep

View full text Add to dashboard Cite

show abstract

Analysis of light absorption with variation of epidermis thickness in human skin model using Monte Carlo simulation

Cited by 1 publication

References 6 publications

Monte Carlo simulation of the effect of melanin concentration on light-tissue interactions in transmittance and reflectance finger photoplethysmography

Monte Carlo simulation of the effect of melanin concentration on light-tissue interactions in transmittance and reflectance finger photoplethysmography

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