IEEE transactions on bio-medical engineering
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IEEE Trans Biomed Eng · Mar 2016
A Robust Heart Rate Monitoring Scheme Using Photoplethysmographic Signals Corrupted by Intense Motion Artifacts.
Although photoplethysmographic (PPG) signals can monitor heart rate (HR) quite conveniently in hospital environments, trying to incorporate them during fitness programs poses a great challenge, since in these cases, the signals are heavily corrupted by motion artifacts. ⋯ This method is expected to greatly facilitate the presently available wearable gadgets in HR computation during various physical activities.
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IEEE Trans Biomed Eng · Mar 2016
A Feedback Control Approach to Organic Drug Infusions Using Electrochemical Measurement.
Target-controlled infusion of anesthesia is a closed-loop automated drug delivery method with a computer-aided control. Our goal is to design and test an automated drug infusion platform for propofol delivery in total intravenous anesthesia (TIVA) administration. ⋯ This platform will contribute to high-performance TIVA application of intravenous propofol anesthesia.
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IEEE Trans Biomed Eng · Feb 2016
Facial Image Analysis for Fully Automatic Prediction of Difficult Endotracheal Intubation.
Difficult tracheal intubation is a major cause of anesthesia-related injuries with potential life threatening complications. Detection and anticipation of difficult airway in the preoperative period is, thus, crucial for the patients' safety. We propose an automatic face-analysis approach to detect morphological traits related to difficult intubation and improve its prediction. ⋯ We present the first completely automatic and noninvasive difficult intubation detection system that is suitable for use in clinical settings.
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IEEE Trans Biomed Eng · Jan 2016
Chronic In Vivo Evaluation of PEDOT/CNT for Stable Neural Recordings.
Subcellular-sized chronically implanted recording electrodes have demonstrated significant improvement in single unit (SU) yield over larger recording probes. Additional work expands on this initial success by combining the subcellular fiber-like lattice structures with the design space versatility of silicon microfabrication to further improve the signal-to-noise ratio, density of electrodes, and stability of recorded units over months to years. However, ultrasmall microelectrodes present very high impedance, which must be lowered for SU recordings. While poly(3,4-ethylenedioxythiophene) (PEDOT) doped with polystyrene sulfonate (PSS) coating have demonstrated great success in acute to early-chronic studies for lowering the electrode impedance, concern exists over long-term stability. Here, we demonstrate a new blend of PEDOT doped with carboxyl functionalized multiwalled carbon nanotubes (CNTs), which shows dramatic improvement over the traditional PEDOT/PSS formula. ⋯ This project uses leading-edge biomaterials to develop chronic neural probes that are small (subcellular) with excellent electrical properties for stable long-term recordings. High-density ultrasmall electrodes combined with advanced electrode surface modification are likely to make significant contributions to the development of long-term (permanent), high quality, and selective neural interfaces.
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IEEE Trans Biomed Eng · Dec 2015
ReviewFrom Wearable Sensors to Smart Implants--Toward Pervasive and Personalized Healthcare.
This paper discusses the evolution of pervasive healthcare from its inception for activity recognition using wearable sensors to the future of sensing implant deployment and data processing. ⋯ The sensing technologies discussed in this paper and their future evolution will play a key role in realizing the goal of sustainable healthcare systems.