Results 71 to 80 of about 47,437 (270)

A Piezoelectric Plethysmograph Sensor Based on a Pt Wire Implanted Lead Lanthanum Zirconate Titanate Bulk Ceramic

open access: yesSensors, 2010
This work reports on the development of a Lead Lanthanum Zirconate Titanate (PLZT) bulk ferroelectric poled ceramic structure as a Piezoelectric Plethysmograph (PZPG) sensor.
Ernesto Suaste-Gómez   +2 more
doaj   +1 more source

Three‐dimensional geometric morphometric analysis of diaphragmatic dome motion in COPD patients

open access: yesThe Anatomical Record, EarlyView.
Abstract Diaphragmatic dysfunction is a hallmark of chronic obstructive pulmonary disease (COPD), especially in emphysema, where hyperinflation alters diaphragm geometry and impairs inspiratory mechanics. However, quantitative three‐dimensional (3D) assessments of diaphragmatic dome shape and motion across COPD phenotypes are limited.
José M. López‐Rey   +5 more
wiley   +1 more source

Evaluation of Electrical and Optical Plethysmography Sensors for Noninvasive Monitoring of Hemoglobin Concentration

open access: yesSensors, 2012
Completely noninvasive monitoring of hemoglobin concentration has not yet been fully realized in the clinical setting. This study investigates the viability of measuring hemoglobin concentration noninvasively by evaluating the performance of two types of
Panayiotis A. Kyriacou   +2 more
doaj   +1 more source

Protocol of the SOMNIA project : an observational study to create a neurophysiological database for advanced clinical sleep monitoring [PDF]

open access: yes, 2019
Introduction Polysomnography (PSG) is the primary tool for sleep monitoring and the diagnosis of sleep disorders. Recent advances in signal analysis make it possible to reveal more information from this rich data source.
Arsenali, Bruno   +16 more
core   +2 more sources

Possible therapeutic repositioning of valproic acid: From epileptic seizures to acute kidney injury

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Valproic acid, an anticonvulsant, may be repositioned to prevent acute kidney injury due to ischemia followed by reperfusion. It preserves renal functions, electrolyte homeostasis and active sodium transport in kidney tubules, and blocks the onset of hypertension.
Danilo Alves‐Bezerra   +8 more
wiley   +1 more source

Detecting periodicity in experimental data using linear modeling techniques [PDF]

open access: yes, 1998
Fourier spectral estimates and, to a lesser extent, the autocorrelation function are the primary tools to detect periodicities in experimental data in the physical and biological sciences.
C. S. Burrus   +15 more
core   +2 more sources

Phonocardiography based pulse wave velocity system for non-occlusive assessment of arterial stiffness

open access: yesFrontiers in Cardiovascular Medicine
Arterial stiffness is strongly associated with vascular aging and pathology and can be assessed in many ways. Existing devices for measuring central arterial stiffness, such as carotid-femoral pulse wave velocity (PWV), are limited by high costs and the ...
T. Corina Margain   +3 more
doaj   +1 more source

Fast cycle of vagus nerve stimulation is associated with increased sleep‐related breathing disorder in patients with epilepsy

open access: yesEpilepsia, EarlyView.
Abstract Objective This work was undertaken to study the association between vagus nerve stimulation (VNS) parameters and the apnea–hypopnea index (AHI) measured by polysomnography in patients with drug‐resistant epilepsy. Methods Patients with epilepsy who underwent polysomnography with an active VNS device between 2018 and 2023 were retrospectively ...
Jacques‐François Massa   +8 more
wiley   +1 more source

Detection of focal impaired awareness seizures using a biometric shirt

open access: yesEpilepsia Open, EarlyView.
Abstract Objective In recent years, seizure detection using wearable technology has gained significant attention in research. Most studies, however, have focused on detecting generalized or focal to bilateral tonic–clonic seizures. This study evaluates the feasibility of using a biometric shirt to detect focal impaired awareness seizures (FIAS) by ...
Jérôme St‐Jean   +6 more
wiley   +1 more source

Fibroscan ® : A noninvasive test of liver fibrosis assessment

open access: yesThe Saudi Journal of Gastroenterology, 2007
Determination of the extent of progress of hepatic fibrosis is important in clinical practice, where it may reflect the severity of liver disease and predict response to treatment. Percutaneous liver biopsy is the gold standard for grading and staging of
Al-Ghamdi Abdullah
doaj  

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