Performance of the Emotiv Epoc headset for P300-based applications
Source, 20 hours ago
Background: For two decades, EEG-based Brain-Computer Interface (BCI) systems have been widely studied in research labs. Now, researchers want to consider out-of-the-lab applications and make this technology available to everybody. However, medical-grade EEG recording devices are still much too expe...
Heart energy signature spectrogram for cardiovascular diagnosis
Source, 20 hours ago
A new method and application is proposed to characterize intensity and pitch of human heart sounds and murmurs. Using recorded heart sounds from the library of one of the authors, a visual map of heart sound energy was established. Both normal and abnormal heart sound recordings were studied. Repres...
Nonlinear Heart Rate Variability features for real-life stress detection. Case study: students under stress due to university examination
Source, 20 hours ago
Background: This study investigates the variations of Heart Rate Variability (HRV) due to a real-life stressor and proposes a classifier based on nonlinear features of HRV for automatic stress detection. Methods: 42 students volunteered to participate to the study about HRV and stress. For each stud...
Biological effects of exposure to magnetic resonance imaging: an overview
Source, 20 hours ago
The literature on biological effects of magnetic and electromagnetic fields commonly utilized in magnetic resonance imaging systems is surveyed here. After an introduction on the basic principles of magnetic resonance imaging and the electric and magnetic properties of biological tissues, the basic ...
Challenges, issues and trends in fall detection systems
Source, 20 hours ago
Since falls are a major public health problem among older people, the number of systems aimed at detecting them has increased dramatically over recent years. This work presents an extensive literature review of fall detection systems, including comparisons among various kinds of studies. It aims to ...
How smartphones are changing the face of mobile and participatory healthcare: an overview, with example from eCAALYX
Source, 20 hours ago
The latest generation of smartphones are increasingly viewed as handheld computers rather than as phones, due to their powerful on-board computing capability, capacious memories, large screens and open operating systems that encourage application development. This paper provides a brief state-of-the...
Influence of the measurement method of features in ultrasound images of the thyroid in the diagnosis of Hashimoto''s disease
Source, 20 hours ago
IntroductionThis paper shows the influence of a measurement method of features in the diagnosis of Hashimoto's disease. Sensitivity of the algorithm to changes in the parameters of the ROI, namely shift, resizing and rotation, has been presented. The obtained results were also compared to the method...
Compressed-sensing-based fluorescence molecular tomographic image reconstruction with grouped sources
Source, September 08, 2014
Background: Although the quality of reconstructed results can be improved with the increment of the number of measurements, the scale of the matrices involved in the reconstruction of fluorescence molecular tomography (FMT) will become larger, which leads to the poor efficiency of the process of tom...
Four lateral mass screw fixation techniques in lower cervical spine following laminectomy: a finite element analysis study of stress distribution
Source, September 05, 2014
Background: Lateral mass screw fixation (LSF) techniques have been widely used for reconstructing and stabilizing the cervical spine; however, complications may result depending on the choice of surgeon. There are only a few reports related to LSF applications, even though fracture fixation has beco...
Unconstrained snoring detection using a smartphone during ordinary sleep
Source, August 31, 2014
Background: Snoring can be a representative symptom of a sleep disorder, and thus snoring detection is quite important to improving the quality of an individual's daily life. The purpose of this research is to develop an unconstrained snoring detection technique that can be integrated into a smartph...
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