Instrument to detect syncope and the onset of shock

Daniel R. McAdams; Noah J. Kolodziejski; Christopher J. Stapels; Daniel E. Fernandez; Matthew J. Podolsky; Dana Farkas; James F. Christian; Michael J. Joyner; Christopher P. Johnson; Norman A. Paradis

doi:10.1117/12.2212803

17 March 2016 Instrument to detect syncope and the onset of shock

Daniel R. McAdams, Noah J. Kolodziejski, Christopher J. Stapels, Daniel E. Fernandez, Matthew J. Podolsky, Dana Farkas, James F. Christian, Michael J. Joyner, Christopher P. Johnson, Norman A. Paradis

Author Affiliations +

Proceedings Volume 9707, Dynamics and Fluctuations in Biomedical Photonics XIII; 970706 (2016) https://doi.org/10.1117/12.2212803
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

Currently the diagnosis of hemorrhagic shock is essentially clinical, relying on the expertise of nurses and doctors. One of the first measurable physiological changes that marks the onset of hemorrhagic shock is a decrease in capillary blood flow. Diffuse correlation spectroscopy (DCS) quantifies this decrease. DCS collects and analyzes multiply scattered, coherent, near infrared light to assess relative blood flow. This work presents a preliminary study using a DCS instrument with human subjects undergoing a lower body negative pressure (LBNP) protocol. This work builds on previous successful DCS instrumentation development and we believe it represents progress toward understanding how DCS can be used in a clinical setting.

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Daniel R. McAdams, Noah J. Kolodziejski, Christopher J. Stapels, Daniel E. Fernandez, Matthew J. Podolsky, Dana Farkas, James F. Christian, Michael J. Joyner, Christopher P. Johnson, and Norman A. Paradis "Instrument to detect syncope and the onset of shock", Proc. SPIE 9707, Dynamics and Fluctuations in Biomedical Photonics XIII, 970706 (17 March 2016); https://doi.org/10.1117/12.2212803

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