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International Conference of the IEEE Engineering in Medicine and Biology Society. Proceedings

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  1. Non-convex compressed sensing CT reconstruction based on tensor discrete Fourier slice theorem.

    International Conference of the IEEE Engineerin... 2014:5141 (2014) PMID 25571150

    X-ray computed tomography (CT) scanners provide clinical value through high resolution and fast imaging. However, achievement of higher signal-to-noise ratios generally requires emission of more X-rays, resulting in greater dose delivered to the body of the patient. This is of concern, as higher...
  2. Standing ballistocardiography measurements in microgravity.

    International Conference of the IEEE Engineerin... 2014:5180 (2014) PMID 25571160

    The performance and practicality of a scale-based ballistocardiogram (BCG) system for hemodynamic monitoring of astronauts on extended space missions was demonstrated. The system consists of a modified electronic weighing scale fitted with foot bindings to mechanically couple the subject to the ...
  3. Geometric decoupling of a mouse array coil using a dual plane pair design with crisscrossed return paths and custom mounting fixture.

    International Conference of the IEEE Engineerin... 2014:1394 (2014) PMID 25570228

    An element design for receive array coils that decouples from the transmit coil without external active detuning is presented for magnetic resonance imaging (MRI) of mice. The array element uses a crisscrossed geometry on the return paths to reduce the current induced by the transmit coil. Witho...
  4. Exploring difference and overlap between schizophrenia, schizoaffective and bipolar disorders using resting-state brain functional networks.

    International Conference of the IEEE Engineerin... 2014:1517 (2014) PMID 25570258

    Schizophrenia, schizoaffective and bipolar disorders share some common symptoms. However, the biomarkers underlying those disorders remain unclear. In fact, there is still controversy about the schizoaffective disorder with respect to its validity of independent category and its relationship wit...
  5. The dynamic effect of muscle activation on knee stiffness.

    International Conference of the IEEE Engineerin... 2014:1599 (2014) PMID 25570278

    Adapting limb mechanics in a task and environment dependent manner is one component of human motor control. Joint mechanics have been extensively studied under static postural conditions, but less so under time-varying movement conditions. The limited studies that have investigated joint mechani...
  6. Simultaneous blind separation and clustering of coactivated EEG/MEG sources for analyzing spontaneous brain activity.

    International Conference of the IEEE Engineerin... 2014:4932 (2014) PMID 25571098

    Analysis of the dynamics (non-stationarity) of functional connectivity patterns has recently received a lot of attention in the neuroimaging community. Most analysis has been using functional magnetic resonance imaging (fMRI), partly due to the inherent technical complexity of the electro- or ma...
  7. A multichannel current stimulator chip for spatiotemporal pattern stimulation of neural tissues.

    International Conference of the IEEE Engineerin... 2014:5011 (2014) PMID 25571118

    We developed a prototype very-large-scale integration chip of a multichannel current stimulator for stimulating neural tissues by utilizing 0.25 μm high-voltage complementary metal-oxide-semiconductor technology. Our designed chip has 20 output channels that are driven by five current buffers ar...
  8. Bounded-observation Kalman filtering of correlation in multivariate neural recordings.

    International Conference of the IEEE Engineerin... 2014:5052 (2014) PMID 25571128

    A persistent question in multivariate neural signal processing is how best to characterize the statistical association between brain regions known as functional connectivity. Of the many metrics available for determining such association, the standard Pearson correlation coefficient (i.e., the z...
  9. Neuroprosthetic limb control with electrocorticography: Approaches and challenges.

    International Conference of the IEEE Engineerin... 2014:5212 (2014) PMID 25571168

    Advanced upper limb prosthetics, such as the Johns Hopkins Applied Physics Lab Modular Prosthetic Limb (MPL), are now available for research and preliminary clinical applications. Research attention has shifted to developing means of controlling these prostheses. Penetrating microelectrode array...
  10. Coupling effect on thermal comfort in a typical cubicle-based office with personalized floor diffuser control.

    International Conference of the IEEE Engineerin... 2014:840 (2014) PMID 25570090

    A typical office layout with cubicles, in which occupants have their own control of the micro-environment by adjusting supply air flow rate of the floor diffuser, is numerically investigated for the impact of the discrepancy in personal thermal sensation preference on thermal comfort. The compar...