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Date of download: 9/19/2016 Copyright © 2016 SPIE. All rights reserved. (a) Estimated fraction of oxy-, deoxy-, and methemoglobin, total volume fraction.

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Presentation on theme: "Date of download: 9/19/2016 Copyright © 2016 SPIE. All rights reserved. (a) Estimated fraction of oxy-, deoxy-, and methemoglobin, total volume fraction."— Presentation transcript:

1 Date of download: 9/19/2016 Copyright © 2016 SPIE. All rights reserved. (a) Estimated fraction of oxy-, deoxy-, and methemoglobin, total volume fraction of scatterers, fraction of lysed red blood cells over the time course of a positive blood culture sample containing E. coli. (b) Calculated deoxy/oxy ratio over time. Figure Legend: From: New method for the detection of micro-organisms in blood: application of quantitative interpretation model to aerobic blood cultures J. Biomed. Opt. 2009;14(3):034043-034043-10. doi:10.1117/1.3156837

2 Date of download: 9/19/2016 Copyright © 2016 SPIE. All rights reserved. Representative diffuse reflectance spectra in the spectral range 500–850nm collected during blood culture experiments with two representative gram positive cocci (a) S. aureus and (b) E. faecalis and two representative gram negative rods (c) P. aeruginosa and (d) E. cloacae. Figure Legend: From: New method for the detection of micro-organisms in blood: application of quantitative interpretation model to aerobic blood cultures J. Biomed. Opt. 2009;14(3):034043-034043-10. doi:10.1117/1.3156837

3 Date of download: 9/19/2016 Copyright © 2016 SPIE. All rights reserved. Calculated ratios of the fractions of deoxyhemoglobin (f(HbDO)) and oxyhemoglobin (f(HbO2)) over the time courses of duplicate blood culture experiments with (from left to right) E. faecalis, E cloacae, S. aureus and P. aeruginosa and experiments with uncontaminated negative blood cultures. Figure Legend: From: New method for the detection of micro-organisms in blood: application of quantitative interpretation model to aerobic blood cultures J. Biomed. Opt. 2009;14(3):034043-034043-10. doi:10.1117/1.3156837

4 Date of download: 9/19/2016 Copyright © 2016 SPIE. All rights reserved. Estimated fractions of oxy-, deoxy-, and met- hemoglobin and total volume fraction of scatters over the time course of 72hours for nine independent control blood culture experiments with no bacteria. Figure Legend: From: New method for the detection of micro-organisms in blood: application of quantitative interpretation model to aerobic blood cultures J. Biomed. Opt. 2009;14(3):034043-034043-10. doi:10.1117/1.3156837

5 Date of download: 9/19/2016 Copyright © 2016 SPIE. All rights reserved. Schematics depicting the configuration of the optical bench. (b) D=detector and S=Sensor Figure Legend: From: New method for the detection of micro-organisms in blood: application of quantitative interpretation model to aerobic blood cultures J. Biomed. Opt. 2009;14(3):034043-034043-10. doi:10.1117/1.3156837

6 Date of download: 9/19/2016 Copyright © 2016 SPIE. All rights reserved. (a) diffuse reflectance spectra in the spectral range 500–850nm collected during a blood culture experiments with E. coli. (b) Selected spectra from the same experiment that depict the distinct spectral shift of hemoglobin signatures from oxy- (1) to deoxy- (3) hemoglobin over 10hours. Figure Legend: From: New method for the detection of micro-organisms in blood: application of quantitative interpretation model to aerobic blood cultures J. Biomed. Opt. 2009;14(3):034043-034043-10. doi:10.1117/1.3156837


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