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. 2021 Aug 13;26(8):085002. doi: 10.1117/1.JBO.26.8.085002

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© 2021 The Authors

Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Fig. 5 — A thenar occlusion was performed on a healthy male subject. (a) HbMbO2 (red) and HbMbR (dashed, blue) dynamics are shown. The hemoglobin values were calculated provided H2O and FAT quantification by BB-DOSI. (b) Normalized frequency power spectrum with a 1.28-Hz peak representing heart rate and a 2.46-Hz peak for the first harmonic of the heart rate. (c) StO2 (dashed), SaO2 (black dots), and SvO2 (white circles) were calculated during baseline and release. (d) tMRO2 calculated using MM-DOSI (magenta line) and tMRO2 using BB-DOSI with DCS-provided flow from a secondary occlusion (gray line).