Results 221 to 230 of about 126,717 (256)

Toe Pulse Wave Analysis in Obliterating Atherosclerosis

Angiology, 1983
Photoplethysmographic measurements were carried out in 61 limbs with angiographically documented obliterating atherosclerosis (OA) and in 72 limbs without OA. The distance P was measured between the ascending and de scending limbs of the pulse wave at the border of the upper and middle thirds of the amplitude.
I, Oliva, K, Roztoĉil
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Pulse wave analysis and hypertension

Journal of Hypertension, 2004
One hundred and thirty years ago, long before the routine use of blood pressure measurement, Mahmoud [1] advocated pulse wave analysis as a means of evaluating the functional integrity of the circulation. Enthusiasm for this approach subsequently diminished when sphygmomanometry emerged as a simple and reliable means of recording peripheral blood ...
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Carotid pulse wave analysis

Blood Pressure Monitoring, 2019
Pulse wave analysis (PWA) over the carotid artery is one of the available methodological options to obtain central arterial pressures and other important hemodynamic parameters. However, limited data exist relating the PWA estimates of one carotid artery over the contralateral one as the majority of the available data rely on measures over the right ...
Telmo, Pereira, Sara, Domingues, João, Maldonado, Jorge, Conde   +3 more
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Pulse Wave Analysis Techniques

2019
Pulse wave analysis, or PWA, is a technique based on the morphological analysis of blood pressure waveforms, whose shape reflects crucial information on the properties of the arterial wall and blood pressure itself. Although the first historical developments of PWA date back to the nineteenth century, the technique started to prosper with the ...
Martin Proença, Philippe Renevey, Fabian Braun, Guillaume Bonnier, Ricard Delgado-Gonzalo, Alia Lemkaddem, Christophe Verjus, Damien Ferrario, Mathieu Lemay   +8 more
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Instruments for Pulse Wave Analysis and Measurement of Pulse Wave Velocity

2012
Over the last few years, a lot of new instruments for pulse wave analysis or measurement of pulse wave velocity have been launched onto the market. It seems that their main aim is to supply operator-independent devices, which can perform faster, while the accuracy of the measurement or the scientific soundness of the algorithms used are of secondary ...
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Pulse Wave Velocity and Pulse Wave Analysis in Experimental Animals

2012
Until a few years ago, pulse wave velocity in experimental animals (mice, rats, rabbits, etc.) could only be measured by invasive methods. The carotid or femoral artery was surgically isolated and catheterized to assess intra-arterial pressure. The carotid and femoral signals were measured simultaneously, and the pulse wave transit time was then ...
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Analysis of the Wave Pattern of CSF Pulse Wave

1980
Even though many studies have been performed to monitor continuous intracranial pressure (ICP) since Lundberg (I) reported, the pulsation of CSF has not been precisely studied in the wave pattern. This study aims at analyzing the pressure fluctuation in CSF as the wave pattern.
A. Gega, S. Utsumi, Y. Iida, N. Iida, S. Tsuncda   +4 more
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Analysis of intracranial pressure pulse wave in experimental hydrocephalus

Child's Nervous System, 1994
Much has been written about the relationship between the pulse pressure (PP) of the intracranial pressure pulse wave (ICPPW) and ventricle dilatation. Some data suggest that high PP is the cause of ventricle dilatation, and other authors have reported that high PP results from decreased intracranial compliance.
T, Matsumoto, T, Fukushima, M, Mase, H, Nagai   +3 more
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Analysis of the microcirculatory pulse wave: age-related alterations

2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2015
Morphological analysis of the pulse wave of central blood pressure signal is commonly used for the study of cardiac and vascular properties, but very few attempts were performed for analyzing the peripheral pulse wave of blood flow. In this work, we analyzed this waveform using classical methods, based on the application of FFT, followed by principal ...
Giada Straface, Luigi Landini, Massimo Barrella, Maurizio Bevilacqua 0001, Attilio Evangelisti, Leonardo Bocchi   +5 more
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Analysis of Pulse Wave Similarity in Photoplethysmograms

Computational Mathematics and Modeling, 2017
The article focuses on the analysis of photoplethysmograms. The quality of a photoplethysmogram is assessed by solving the classification problem, i.e., identifying the patient from the photoplethysmogram. Efficient patient identification methods are proposed, including methods based on DTW and TWED metrics. Identification accuracy reaches 70%.
A. M. Golovina, A. G. D’yakonov, O. A. Kharatsidi   +2 more
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