A magnetic resonance imaging study on the articulatory and acoustic speech parameters of Malay vowels
Source, July 25, 2014
The phonetic properties of six Malay vowels are investigated using magnetic resonance imaging (MRI) to visualize the vocal tract in order to obtain dynamic articulatory parameters during speech production. To resolve image blurring due to the tongue movement during the scanning process, a method bas...
Investigation of gastric cancers in nude mice using X-ray in-line phase contrast imaging
Source, July 24, 2014
Background: This paper is to report the new imaging of gastric cancers without the use of imaging agents. Both gastric normal regions and gastric cancer regions can be distinguished by using the principal component analysis (PCA) based on the gray level co-occurrence matrix (GLCM). Methods: Human ga...
A novel channel selection method for multiple motion classification using high-density electromyography
Source, July 24, 2014
Background: Selecting an appropriate number of surface electromyography (EMG) channels with desired classification performance and determining the optimal placement of EMG electrodes would be necessary and important in practical myoelectric control. In previous studies, several methods such as seque...
Clinical and pathological correlates of severity classifications in trigger fingers based on computer-aided image analysis
Source, July 23, 2014
Background: The treatment of trigger finger so far has heavily relied on clinicians'' evaluations for the severity of patients'' symptoms and the functionality of affected fingers. However, there is still a lack of pathological evidence supporting the criteria of clinical evaluations. This study''s ...
The effect of baseline pressure errors on an intracranial pressure-derived index: results of a prospective observational study
Source, July 22, 2014
Background: In order to characterize the intracranial pressure-volume reserve capacity, the correlation coefficient (R) between the ICP wave amplitude (A) and the mean ICP level (P), the RAP index, has been used to improve the diagnostic value of ICP monitoring. Baseline pressure errors (BPEs), caus...
Implementation of expert systems to support the functional evaluation of stand-to-sit activity
Source, July 21, 2014
Background: Functional evaluation of sit-to-stand and stand-to-sit activities is often used by physiotherapists in patients with neurological and musculoskeletal disorders. The observation of the way these activities are executed is essential in identifying kinesiological problems. There are differe...
Experimental study of PLLA/INH slow release implant fabricated by three dimensional printing technique and drug release characteristics in vitro
Source, July 19, 2014
Background: Local slow release implant provided long term and stable drug release in the lesion. The objective of this study was to fabricate biodegradable slow release INH/PLLA tablet via 3 dimensional printing technique (3DP) and to compare the drug release characteristics of three different struc...
Validation of the pulse decomposition analysis algorithm using central arterial blood pressure
Source, July 08, 2014
Background: There is a significant need for continuous noninvasive continuous blood pressure (cNIBP) monitoring, especially for anesthetized surgery and ICU recovery. cNIBP systems could lower costs and expand the use of continuous blood pressure monitoring, lowering risk and improving outcomes.The ...
An in-situ calibration method and the effects on stimulus frequency otoacoustic emissions
Source, July 07, 2014
Background: The interference between the incoming sound wave and the acoustic energy reflected by the tympanic membrane (TM) forms a standing wave in human ear canals. The existence of standing waves causes various problems when measuring otoacoustic emissions (OAEs) that are soft sounds closely rel...
Machine learning, medical diagnosis, and biomedical engineering research - commentary
Source, July 05, 2014
A large number of papers are appearing in the biomedical engineering literature that describe the use of machine learning techniques to develop classifiers for detection or diagnosis of disease. However, the usefulness of this approach in developing clinically validated diagnostic techniques so far ...
Stories 1 - 10 of 162