BioMedical Engineering OnLine

The latest news from BioMedical Engineering OnLine
A comparative analysis of swallowing accelerometry and sounds during saliva swallows
Source, February 08, 2015
Background: Accelerometry (the measurement of vibrations) and auscultation (the measurement of sounds) are both non-invasive techniques that have been explored for their potential to detect abnormalities in swallowing. The differences between these techniques and the information they capture about s...
Design and development of a content-based medical image retrieval system for spine vertebrae irregularity
Source, February 08, 2015
Background: Content-based medical image retrieval (CBMIR) system enables medical practitioners to perform fast diagnosis through quantitative assessment of the visual information of various modalities. Methods: In this paper, a more robust CBMIR system that deals with both cervical and lumbar verteb...
QSIM: quantitative structured illumination microscopy image processing in ImageJ
Source, January 23, 2015
Background: Structured illumination microscopy has been extensively used in biological imaging due to its low cost and easy implementation. However, the lack of quantitative imaging capability limits its application in absolute irradiance measurements.MethodWe have developed a quantitative structure...
Brain MR image denoising for Rician noise using pre-smooth non-local means filter
Source, January 18, 2015
Background: Magnetic resonance imaging (MRI) is corrupted by Rician noise, which is image dependent and computed from both real and imaginary images. Rician noise makes image-based quantitative measurement difficult. The non-local means (NLM) filter has been proven to be effective against additive n...
3D vasculature segmentation using localized hybrid level-set method
Source, January 12, 2015
Background: Intensity inhomogeneity occurs in many medical images, especially in vessel images. Overcoming the difficulty due to image inhomogeneity is crucial for the segmentation of vessel image. Methods: This paper proposes a localized hybrid level-set method for the segmentation of 3D vessel ima...
An objective assessment method for frequency selectivity of the human auditory system
Source, January 11, 2015
Background: Frequency selectivity (FS) is an important aspect of auditory function, and is typically described by a tuning curve function. Sharply tuned curves represent a higher acuity in detecting frequency differences, and conversely, broadly tuned curves demonstrate a lower acuity. One way of ob...
Quantification of functional hand grip using electromyography and inertial sensor-derived accelerations: clinical implications
Source, January 06, 2015
Background: Assessing hand injury is of great interest given the level of involvement of the hand with the environment. Knowing different assessment systems and their limitations generates new perspectives. The integration of digital systems (accelerometry and electromyography) as a tool to suppleme...
Interactive simulator for e-Learning environments: a teaching software for health care professionals
Source, January 05, 2015
There is an established tradition of cardiovascular simulation tools, but the application of this kind of technology in the e-Learning arena is a novel approach. This paper presents an e-Learning environment aimed at teaching the interaction of cardiovascular and lung systems to health-care professi...
Real-time estimation of respiratory rate from a photoplethysmogram using an adaptive lattice notch filter
Source, January 05, 2015
Background: Many researchers have attempted to acquire respiratory rate (RR) information from a photoplethysmogram (PPG) because respiration affects the waveform of the PPG. However, most of these methods were difficult to operate in real-time because of their complexity or computational requirement...
Implementation of a portable device for real-time ECG signal analysis
Source, January 01, 2015
Background: Cardiac disease is one of the main causes of catastrophic mortality. Therefore, detecting the symptoms of cardiac disease as early as possible is important for increasing the patient's survival. In this study, a compact and effective architecture for detecting atrial fibrillation (AFib) ...
Stories 1 - 10 of 61