Medical & Biological Engineering & Computing
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Instrumented staircase for kinetic analyses of upper-and lower-limb function during stair gait
Medical & Biological Engineering & Computing - Tập 43 - Trang 552-556 - 2005
The paper describes the design, technical characteristics and first results of an adjustable staircase with commercial force plates embedded in the steps and custom force transducers as part of the handrail supports. For the railing assembly, the greatest errors (<10% of maximum signal) and cross-talk range (0.58–6.74%) were in the medial-lateral direction and were corrected using a calibration ma...... hiện toàn bộ
Electronic feature extractor for action potentials
Medical & Biological Engineering & Computing - Tập 17 - Trang 239-245 - 1979
An electronic feature-extraction system is presented that simplifies the measurement of five parameters of the action potential. These parameters are: (a) the peak amplitude of the action potential, (b) the maximum slope, (c) the threshold as measured at the inflection on the rising phase of the action potential, (d) the time interval between the inflection and the peak of the action potential, an...... hiện toàn bộ
Assessment of the catheter tip pressure transducer for use in infant lung function tests
Medical & Biological Engineering & Computing - Tập 20 - Trang 657-660 - 1982
A catheter tip pressure transducer was testedin vitro to determine its stability, linearity and frequency response. It was then compared simultaneously with an oesophageal balloon in two trained adult subjects, using measurements of end-expiratory oesophageal pressure and the ratio of oesophageal pressure to mouth pressure changes during airway occlusion. This ratio should be unity, since during a...... hiện toàn bộ
Detection of atrial-flutter and atrial-fibrillation waveforms by fetal magnetocardiogram
Medical & Biological Engineering & Computing - Tập 40 - Trang 213-217 - 2002
Two cases of fetal tachycardia are reported: atrial flutter and fibrillation. The waveforms from each case were detected by fetal magnetocardiograms (FMCGs) using a 64-channel superconducting quantum interference device (SQUID) system. Because the magnitude of supraventricular arrhythmia signals is very weak, two subtraction methods were used to detect the fetal MCG waveforms: subtraction of the m...... hiện toàn bộ
A Systems Approach to Biomedicine
Medical & Biological Engineering & Computing - Tập 8 - Trang 433-434 - 1970
MTF of columnar phosphors with a homogenous part: an analytical approach
Medical & Biological Engineering & Computing - Tập 58 - Trang 2551-2565 - 2020
A method for the theoretical estimation of the MTF of columnar phosphors with a homogeneous part at the end used in X-ray imaging has been developed. This method considers the light transport inside the scintillator through an analytical modelling, the optical photon beams distribution on the scintillator–optical sensor interface, and uses the definition of the PSF and a Gauss fitted LSF to estima...... hiện toàn bộ
B1-based SAR reconstruction using contrast source inversion–electric properties tomography (CSI-EPT)
Medical & Biological Engineering & Computing - Tập 55 - Trang 225-233 - 2016
Specific absorption rate (SAR) assessment is essential for safety purposes during MR acquisition. Online SAR assessment is not trivial and requires, in addition, knowledge of the electric tissue properties and the electric fields in the human anatomy. In this study, the potential of the recently developed CSI-EPT method to reconstruct SAR distributions is investigated. This method is based on inte...... hiện toàn bộ
Electronic aid in the treatment of stammer
Medical & Biological Engineering & Computing - Tập 1 - Trang 121-125 - 1963
Cherry andSayers (1956) showed that stammering could be inhibited by the use of low frequency tones which prevented the subject hearing his own voice. They mentioned that this could have possible application in the treatment of stammer but are not aware of this having been pursued (personal communication). Arising out of difficulties of interview in psychiatric practice a search w...... hiện toàn bộ
OVME-REG: Harris hawks optimization algorithm based optimized variational mode extraction for eye blink artifact removal from EEG signal
Medical & Biological Engineering & Computing - - Trang 1-18 - 2023
The electroencephalogram (EEG) recordings from the human brain are useful for detecting various brain syndromes. These recordings are typically contaminated by high amplitude eye blink artifacts, which leads to deliberate misinterpretation of the EEG signal. Recently, variational mode extraction (VME) has been used to detect eye blink artifacts. But, the VME performance is impacted by the balancin...... hiện toàn bộ
Development of a rapidly computable descriptor of prostate tissue temperature during transurethral conductive heat therapy for benign prostate hyperplasia
Medical & Biological Engineering & Computing - Tập 31 - Trang 475-481 - 1993
Benign prostate hyperplasia (BPH) is a condition in older men in which the mass of tissue in the prostate gland gradually increases over the course of many years, ultimately leading to urinary outflow obstruction. Current treatment of this condition is to surgically remove the obstructing tissue. One novel alternative therapy being studied is transurethral thermocoagulation of excessive prostatic ...... hiện toàn bộ
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