Diffuse Optical Multipatch Technique for Tissue Oxygenation Monitoring: Clinical Study in Intensive Care Unit

Wang, Chunyang; Chuang, Ming-Lung; Liang, Shinn-Jye; Tsai, Jui-che; Chuang, Ching-Cheng; Hsieh, Yao-Sheng; Lu, Chih-Wei; Lee, Po-Lei; Sun, Chia‐Wei

doi:10.1109/tbme.2011.2147315

Cited by 13 publications

(5 citation statements)

References 32 publications

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“…In fact, occlusion allowed us to obtain a set of data points instead of one data point. Occlusion is used in many studies to measure transient oxygen saturation [34] – [36] . We validated this data using a commercial device to measure oxygen saturation.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Effective CPR Procedure With Real Time Evaluation and Feedback Using Smartphones

Gupta

Dantu²,

Dantu

2014

IEEE J. Transl. Eng. Health Med.

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Timely cardio pulmonary resuscitation (CPR) can mean the difference between life and death. A trained person may not be available at emergency sites to give CPR. Normally, a 9-1-1 operator gives verbal instructions over the phone to a person giving CPR. In this paper, we discuss the use of smartphones to assist in administering CPR more efficiently and accurately. The two important CPR parameters are the frequency and depth of compressions. In this paper, we used smartphones to calculate these factors and to give real-time guidance to improve CPR. In addition, we used an application to measure oxygen saturation in blood. If blood oxygen saturation falls below an acceptable threshold, the person giving CPR can be asked to do mouth-to-mouth breathing. The 9-1-1 operator receives this information real time and can further guide the person giving CPR. Our experiments show accuracy >90% for compression frequency, depth, and oxygen saturation.

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Section: Experiments and Resultsmentioning

confidence: 99%

Effective CPR Procedure With Real Time Evaluation and Feedback Using Smartphones

Gupta

Dantu²,

Dantu

2014

IEEE J. Transl. Eng. Health Med.

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“…Selection techniques, either manual or automatic, are available and have been shown to enhance the response by improving the signal-to-noise ratio. Wang 53 used a binarized segmentation technique to select the regions with the dominant response, while in another study by Cuccia et al, 54 regions with large vessels were avoided to focus on regions containing only microvasculature. Recently, Khalil et al 55 employed correlation analysis to define regions of temporal consistency that correlate significantly with the averaged HbT.…”

Section: Regions Of Hemodynamic Consistencementioning

confidence: 99%

Reproducibility of parameters of postocclusive reactive hyperemia measured by diffuse optical tomography

et al. 2016

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Coca, "Reproducibility of parameters of postocclusive reactive hyperemia measured by diffuse optical tomography," J. Biomed. Opt. 21(6), 066012 (2016), doi: 10.1117/1.JBO.21.6.066012. Abstract. The application of near-infrared spectroscopy (NIRS) to assess microvascular function has shown promising results. An important limitation when using a single source-detector pair, however, is the lack of depth sensitivity. Diffuse optical tomography (DOT) overcomes this limitation using an array of sources and detectors that allow the reconstruction of volumetric hemodynamic changes. This study compares the key parameters of postocclusive reactive hyperemia measured in the forearm using standard NIRS and DOT. We show that while the mean parameter values are similar for the two techniques, DOT achieves much better reproducibility, as measured by the intraclass correlation coefficient (ICC). We show that DOT achieves high reproducibility for muscle oxygen consumption (ICC: 0.99), time to maximal HbO 2 (ICC: 0.94), maximal HbO 2 (ICC: 0.99), and time to maximal HbT (ICC: 0.99). Absolute reproducibility as measured by the standard error of measurement is consistently smaller and close to zero (ideal value) across all parameters measured by DOT compared to NIRS. We conclude that DOT provides a more robust characterization of the reactive hyperemic response and show how the availability of volumetric hemodynamic changes allows the identification of areas of temporal consistency, which could help characterize more precisely the microvasculature. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 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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“…11. Temporal tracings of the VOT response from normal control and heart failure patient tissue oxygen saturation (StO 2 ) and total hemoglobin (tHb) response [Wang et al, 2011].…”

Section: Intensive Care Unitmentioning

confidence: 99%

Hemodynamics Study Based on Near-Infrared Optical Assessment

Sun¹,

Chuang²

2012

Hemodynamics - New Diagnostic and Therapeutic Approaches

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Diffuse Optical Multipatch Technique for Tissue Oxygenation Monitoring: Clinical Study in Intensive Care Unit

Cited by 13 publications

References 32 publications

Effective CPR Procedure With Real Time Evaluation and Feedback Using Smartphones

Effective CPR Procedure With Real Time Evaluation and Feedback Using Smartphones

Reproducibility of parameters of postocclusive reactive hyperemia measured by diffuse optical tomography

Hemodynamics Study Based on Near-Infrared Optical Assessment

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