Theoretical analysis of crosstalk in near-infrared topography

E. Okada; N. Okui

doi:10.1117/12.710677

27 October 2006 Theoretical analysis of crosstalk in near-infrared topography

E. Okada, N. Okui

Proceedings Volume 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine; 60470V (2006) https://doi.org/10.1117/12.710677
Event: Fourth International Conference on Photonics and Imaging in Biology and Medicine, 2005, Tianjin, China

Abstract

Crosstalk between changes in concentration of oxy-and deoxy-haemoglobin calculated by modified Lambert-Beer law in near-infrared topography is theoretically investigated. The change in intensity detected with source-detector pairs on the scalp caused by global or focal ahsorption change in the brain is predicted by Monte Carlo simulation. The topographic images of changes in oxy- and deoxy-haemoglobin are obtained from the changes in intensity detected with source-detector pairs on the scalp. The crosstalk depends on the relative position of the focal absorption change to source-detector pairs. The crosstalk is minimised when the focal absorption change is located below a measurement point that is the midpoint between a source and a detector.

Citation Download Citation

E. Okada and N. Okui "Theoretical analysis of crosstalk in near-infrared topography", Proc. SPIE 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine, 60470V (27 October 2006); https://doi.org/10.1117/12.710677

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