An analysis on the theory of pulse oximetry by Monte Carlo simulation

Shangchun Fan; Rui Cai; Weiwei Xing; Changting Liu; Guangfei Chen; Junfeng Wang

doi:10.1117/12.806731

13 October 2008 An analysis on the theory of pulse oximetry by Monte Carlo simulation

Shangchun Fan, Rui Cai, Weiwei Xing, Changting Liu, Guangfei Chen, Junfeng Wang

Proceedings Volume 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment; 71281P (2008) https://doi.org/10.1117/12.806731
Event: Seventh International Symposium on Instrumentation and Control Technology, 2008, Beijing, China

Abstract

The pulse oximetry is a kind of electronic instrument that measures the oxygen saturation of arterial blood and pulse rate by non-invasive techniques. It enables prompt recognition of hypoxemia. In a conventional transmittance type pulse oximeter, the absorption of light by oxygenated and reduced hemoglobin is measured at two wavelength 660nm and 940nm. But the accuracy and measuring range of the pulse oximeter can not meet the requirement of clinical application. There are limitations in the theory of pulse oximetry, which is proved by Monte Carlo method. The mean paths are calculated in the Monte Carlo simulation. The results prove that the mean paths are not the same between the different wavelengths.

Citation Download Citation

Shangchun Fan, Rui Cai, Weiwei Xing, Changting Liu, Guangfei Chen, and Junfeng Wang "An analysis on the theory of pulse oximetry by Monte Carlo simulation", Proc. SPIE 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment, 71281P (13 October 2008); https://doi.org/10.1117/12.806731

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KEYWORDS

Monte Carlo methods

Light wave propagation

Tissues

Oximetry

Oxygen

Blood

Absorption

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