abstract：OBJECTIVE:Atrial fibrillation (AF) causes marked risk for patients, while silent fibrillation may remain unnoticed if not suspected and screened. Development of comfortable yet accurate beat-to-beat heart rate (HR) monitoring with good AF detection sensitivity would facilitate screening and improve treatment. The purpo...

journal_title：Physiological measurement

authors： Harju J,Tarniceriu A,Parak J,Vehkaoja A,Yli-Hankala A,Korhonen I

更新日期：2018-06-27 00:00:00

abstract：OBJECTIVE:In this paper, a support vector machine (SVM) approach using statistical features, P wave absence, spectrum features, and length-adaptive entropy are presented to classify ECG rhythms as four types: normal rhythm, atrial fibrillation (AF), other rhythm, and too noisy to classify. APPROACH:The proposed algori...

journal_title：Physiological measurement

authors： Liu N,Sun M,Wang L,Zhou W,Dang H,Zhou X

更新日期：2018-06-25 00:00:00

abstract：OBJECTIVE:Arterial CO2 (PaCO2) has a strong effect on cerebral blood flow (CBF), but its influence on CBF regulatory mechanisms and circulatory systemic variables has not been fully described over the entire physiological range of PaCO2. APPROACH:CBF velocity (CBFV, transcranial Doppler), blood pressure (BP, Finometer...

journal_title：Physiological measurement

authors： Minhas JS,Panerai RB,Robinson TG

更新日期：2018-06-19 00:00:00

abstract：OBJECTIVE:Though the mutual influence of cardiovascular and respiratory rhythms in healthy newborns has been documented, its full characterization is still pending. In general, the activity of many physiological subsystems has a well-expressed rhythmic character, and often an interdependency between physiological rhyth...

journal_title：Physiological measurement

authors： Lucchini M,Pini N,Fifer WP,Burtchen N,Signorini MG

更新日期：2018-06-19 00:00:00

abstract：OBJECTIVE:The ventilators involved in non-invasive mechanical ventilation commonly provide ventilator support via a facemask. The interface of the mask with a patient promotes air leaks that cause errors in the feedback information provided by a pneumatic sensor and hence patient-ventilator asynchrony with multiple neg...

journal_title：Physiological measurement

authors： Ivanović MD,Petrovic J,Savić A,Gligorić G,Miletić M,Vukčević M,Bojović B,Hadžievski L,Allsop T,Webb DJ

更新日期：2018-04-26 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Walking is a complex human behavior, usually performed in a dynamic environment. Gait parameters are thought to reflect this complexity. Re-Step™ is a therapy system in the form of a computerized shoe, originally developed for the training and rehabilitation of individuals with brain damage. Th...

journal_title：Physiological measurement

authors： Koren Y,Raanan Y,Parmet Y,Bar-Haim S

更新日期：2018-04-26 00:00:00

abstract：OBJECTIVE:Observational studies suggest that obesity might have a Mendelian origin, but it is not clear if gene expression patterns observed in obese subjects are secondary to genetic traits or not. APPROACH:Here we test a transcriptomic signature of obesity previously identified by our group on a large cohort of twin...

journal_title：Physiological measurement

authors： Font-Clos F,Zapperi S,La Porta CAM

更新日期：2018-04-26 00:00:00

abstract：OBJECTIVE:Increased penetration of pulsatile power to the brain has been implicated in the pathogenesis of age-related cognitive dysfunction and dementia, a common comorbidity in patients with heart failure and preserved ejection fraction (HFpEF). However, there is a lack of knowledge on the effects of organic and inor...

journal_title：Physiological measurement

authors： Londono-Hoyos F,Zamani P,Beraun M,Vasim I,Segers P,Chirinos JA

更新日期：2018-04-20 00:00:00

abstract：OBJECTIVE:The aim of the study was to explore the feasibility of titrating tidal volume (V T) and positive end-expiratory pressure (PEEP) during one-lung ventilation (OLV) based on ventilation distribution and oxygenation. APPROACH:Twenty-four consecutive patients requiring intubation with a double-lumen tube and subs...

journal_title：Physiological measurement

authors： Zhao Z,Wang W,Zhang Z,Xu M,Frerichs I,Wu J,Moeller K

更新日期：2018-03-29 00:00:00

abstract：OBJECTIVE:Manganese (Mn) is a neurotoxin. However, the impact of elevated, chronic Mn exposure is not well understood, partially due to the lack of a cumulative exposure biomarker. To address this gap, our group developed a compact in vivo neutron activation analysis (IVNAA) system to quantify Mn concentration in bone ...

journal_title：Physiological measurement

authors： Liu Y,Rolle-McFarland D,Mostafaei F,Zhou Y,Li Y,Zheng W,Wells E,Nie LH

更新日期：2018-03-23 00:00:00

abstract：OBJECTIVE:Using raw, sub-second-level accelerometry data, we propose and validate a method for identifying and characterizing walking in the free-living environment. We focus on sustained harmonic walking (SHW), which we define as walking for at least 10 s with low variability of step frequency. APPROACH:We utilize th...

journal_title：Physiological measurement

authors： Urbanek JK,Zipunnikov V,Harris T,Fadel W,Glynn N,Koster A,Caserotti P,Crainiceanu C,Harezlak J

更新日期：2018-02-28 00:00:00

abstract：OBJECTIVE:To compare a novel cardiovascular magnetic resonance technique for the assessment of left ventricular (LV) mechanical discoordination by characterizing the endocardial center motion (ECM) in short-axis cine MRI in healthy volunteers and heart failure patients with left bundle branch block (HF-LBBB). APPROACH...

journal_title：Physiological measurement

authors： Saporito S,Houthuizen P,Aben JMM,Westenberg JJM,van Den Bosch HCM,van Assen HC,Mischi M

更新日期：2018-02-28 00:00:00

abstract：OBJECTIVE:Measurement of fractional exhaled nitric oxide (FeNO) is used to determine the presence and severity of eosinophilic airway inflammation in asthma and other wheezing illnesses. The gold standard of online measurement during a single prolonged exhalation is not suitable for use in young children. The internati...

journal_title：Physiological measurement

authors： MacBean V,Pooranampillai D,Howard C,Lunt A,Greenough A

更新日期：2018-02-26 00:00:00

abstract：OBJECTIVE:Characteristic impedance (Zc) is an important component in the theory of hemodynamics. It is a commonly used metric of proximal arterial stiffness and pulse wave velocity. Calculated using simultaneously measured dynamic pressure and flow data, estimates of characteristic impedance can be obtained using metho...

journal_title：Physiological measurement

authors： Qureshi MU,Colebank MJ,Schreier DA,Tabima DM,Haider MA,Chesler NC,Olufsen MS

更新日期：2018-01-31 00:00:00

abstract：OBJECTIVE:Evoked tympanic membrane displacement (TMD) is a non-invasive technique for assessing intracranial pressure (ICP). The aim of this study was to define reference intervals (RIs) in the healthy population. APPROACH:Measurements were made in 154 healthy adults. Results were quantified by V m, which is the most ...

journal_title：Physiological measurement

authors： Campbell-Bell CM,Birch AA,Vignali D,Bulters D,Marchbanks RJ

更新日期：2018-01-31 00:00:00

abstract：OBJECTIVE:To quantify the presence of cardiorespiratory interaction in a group of 41 healthy subjects performing a subset of the Ewing test battery. APPROACH:We measure the empirical distribution of the cardiorespiratory coupling time (RI), defined as the time from inspiration onset to R peaks in the ECG. The study pr...

journal_title：Physiological measurement

authors： Sobiech T,Buchner T,Krzesiński P,Gielerak G

更新日期：2017-11-30 00:00:00

abstract：OBJECTIVE:This paper aims to report on the accuracy of estimating sleep stages using a wrist-worn device that measures movement using a 3D accelerometer and an optical pulse photoplethysmograph (PPG). APPROACH:Overnight recordings were obtained from 60 adult participants wearing these devices on their left and right w...

journal_title：Physiological measurement

authors： Beattie Z,Oyang Y,Statan A,Ghoreyshi A,Pantelopoulos A,Russell A,Heneghan C

更新日期：2017-10-31 00:00:00

abstract：OBJECTIVE:Doppler ultrasound (US) is the most commonly applied method to measure the fetal heart rate (fHR). When the fetal heart is not properly located within the ultrasonic beam, fHR measurements often fail. As a consequence, clinical staff need to reposition the US transducer on the maternal abdomen, which can be a...

journal_title：Physiological measurement

authors： Hamelmann P,Vullings R,Schmitt L,Kolen AF,Mischi M,van Laar JOEH,Bergmans JWM

更新日期：2017-09-21 00:00:00

abstract：:Measurement of intracranial pressure (ICP) can be invaluable in the management of critically ill patients. Cerebrospinal fluid is produced by the choroid plexus in the brain ventricles (a set of communicating chambers), after which it circulates through the different ventricles and exits into the subarachnoid space ar...

journal_title：Physiological measurement

authors： Zhang X,Medow JE,Iskandar BJ,Wang F,Shokoueinejad M,Koueik J,Webster JG

更新日期：2017-07-24 00:00:00

abstract：OBJECTIVE:PaCO2 affects cerebral blood flow (CBF) and its regulatory mechanisms, but the effects of CO2 measurement technique on cerebrovascular parameters are unknown. In order to determine if the two most commonly used approaches, face mask (FM) or nasal cannulae (NC), are interchangeable or not, we tested the hypoth...

journal_title：Physiological measurement

authors： Minhas JS,Robinson T,Panerai R

更新日期：2017-06-22 00:00:00

abstract：:The wrist is increasingly being used as the preferred site for objectively assessing physical activity but the relative accuracy of processing methods for wrist data has not been determined. OBJECTIVE:This study evaluates the validity of four processing methods for wrist-worn ActiGraph (AG) data against energy expend...

journal_title：Physiological measurement

authors： Ellingson LD,Hibbing PR,Kim Y,Frey-Law LA,Saint-Maurice PF,Welk GJ

更新日期：2017-06-01 00:00:00

abstract：:Monitoring the fetal behavior does not only have implications for acute care but also for identifying developmental disturbances that burden the entire later life. The concept, of 'fetal programming', also known as 'developmental origins of adult disease hypothesis', e.g. applies for cardiovascular, metabolic, hyperki...

journal_title：Physiological measurement

authors： Hoyer D,Żebrowski J,Cysarz D,Gonçalves H,Pytlik A,Amorim-Costa C,Bernardes J,Ayres-de-Campos D,Witte OW,Schleußner E,Stroux L,Redman C,Georgieva A,Payne S,Clifford G,Signorini MG,Magenes G,Andreotti F,Malberg H,Zaun

更新日期：2017-05-01 00:00:00

abstract：OBJECTIVE:Bioimpedance has been used to investigate changes in electrical parameters during ischemia in various tissues. The small intestine is a multi-layered structure, with several distinct tissue types, and ischemia related changes occur at different times in the different intestinal layers. When investigating how ...

journal_title：Physiological measurement

authors： Strand-Amundsen RJ,Reims HM,Tronstad C,Kalvøy H,Martinsen ØG,Høgetveit JO,Ruud TE,Tønnessen TI

更新日期：2017-05-01 00:00:00

abstract：:In this paper a description is given of the development, characterisation and first results of a thermal imaging device aimed at significantly reducing the incidence of diabetic foot ulceration (DFU). These devices will be used in three clinical centres and in two preliminary clinical trials. The first will be on heal...

journal_title：Physiological measurement

authors： Machin G,Whittam A,Ainarkar S,Allen J,Bevans J,Edmonds M,Kluwe B,Macdonald A,Petrova N,Plassmann P,Ring F,Rogers L,Simpson R

更新日期：2017-03-01 00:00:00

abstract：:We aim to investigate whether phase shift between respiratory oscillations in cerebral blood flow velocity (CBFV) and arterial blood pressure (ABP) is associated with changes in cerebral autoregulation (CA) or reflects the mechano-elastic properties of the cerebrovascular bed. The relationships between respiratory pha...

journal_title：Physiological measurement

authors： Uryga A,Placek MM,Wachel P,Szczepański T,Czosnyka M,Kasprowicz M

更新日期：2017-02-01 00:00:00

abstract：:Previous studies have proved that the baroreceptor reflex (baroreflex) control of heart rate can be used for stratification of post-infarction population and, in general, cardiovascular disease populations. Many methods have been proposed to estimate the so-called baroreflex sensitivity (BRS) expressed as ms mmhg-1. M...

journal_title：Physiological measurement

authors： Lavanga M,Baselli G,Fumagalli F,Ristagno G,Ferrario M

更新日期：2017-01-01 00:00:00

abstract：:Brown adipose tissue (BAT) plays a key role in adaptive thermogenesis in mammals, and it has recently been considered as an attractive therapeutic target for tackling human obesity by increasing energy expenditure. Thermal imaging using infrared thermography (IRT) has emerged as a potential safe, rapid and inexpensive...

journal_title：Physiological measurement

authors： El Hadi H,Frascati A,Granzotto M,Silvestrin V,Ferlini E,Vettor R,Rossato M

更新日期：2016-12-01 00:00:00

abstract：:Fetal motility is a widely accepted indicator of the well-being of a fetus. In previous research, it has be shown that fetal motion (FM) is coherent with fetal heart rate accelerations and an indicator for active/rest cycles of the fetus. The most common approach for FM and fetal heart rate (FHR) assessment is by Dopp...

journal_title：Physiological measurement

authors： Biglari H,Sameni R

更新日期：2016-11-01 00:00:00

abstract：:Sedentary behaviour (SB) is associated with a number of adverse health outcomes. Studies that have used ActiGraph monitors to define sedentary time tend to use a threshold of  <100 counts per minute (cpm) for classifying SB; however, this cut-point was not empirically derived for adults. It is not known whether ActiGr...

journal_title：Physiological measurement

authors： Clarke-Cornwell AM,Farragher TM,Cook PA,Granat MH

更新日期：2016-10-01 00:00:00

abstract：:Wearables such as accelerometers are emerging as powerful tools for quantifying gait in various environments. Flexibility in wearable location may improve ease of use and data acquisition during instrumented testing. However, change of location may impact algorithm functionality when evaluating associated gait charact...

journal_title：Physiological measurement

authors： Del Din S,Hickey A,Hurwitz N,Mathers JC,Rochester L,Godfrey A

更新日期：2016-10-01 00:00:00

abstract：:When used in large, national surveillance programmes, objective measurement tools provide prevalence estimates of low physical activity guideline compliance and high amounts of sedentary time. There are undoubtedly a plethora of reasons for this but one possible contributing factor is the current lack of behavioural c...

journal_title：Physiological measurement

authors： Loveday A,Sherar LB,Sanders JP,Sanderson PW,Esliger DW

更新日期：2016-10-01 00:00:00

abstract：:Accelerometer wear location may influence physical activity estimates. This study investigates this relationship through the examination of activity patterns throughout the day. Participants from the aging research evaluating accelerometry (AREA) study (n men  =  37, n women  =  47, mean age (SD)  =  78.9 (5.5) years)...

journal_title：Physiological measurement

authors： Shiroma EJ,Schepps MA,Harezlak J,Chen KY,Matthews CE,Koster A,Caserotti P,Glynn NW,Harris TB

更新日期：2016-10-01 00:00:00

abstract：UNLABELLED:The study created an 'ex vivo' model to test different algorithms for measurements of mucosal haemoglobin saturation with visible light spectrophotometry (VLS). The model allowed comparison between algorithms, but it also allowed comparison with co-oximetry using a 'gold standard' method. This has not been d...

journal_title：Physiological measurement

authors： Gade J,Greisen G

更新日期：2016-09-01 00:00:00

abstract：:Sleep-wake patterns are often significantly disturbed in critically ill patients. This disturbance is closely linked to secondary brain dysfunctions in these patients. Sedation not only impairs sleep quality in ICU patients but also has detrimental effects on short- and long-term outcome. In other contexts, light ther...

journal_title：Physiological measurement

authors： Weiss B,Spies C,Piazena H,Penzel T,Fietze I,Luetz A

更新日期：2016-09-01 00:00:00

abstract：:Electrocardiograms (ECGs) recorded from patients in intensive care were investigated to quantify any relationship between ECG signal quality and false monitoring alarms. False alarms are a considerable problem for nursing and medical staff as they distract from clinical care, and are also a problem for patients as the...

journal_title：Physiological measurement

authors： Tsimenidis C,Murray A

更新日期：2016-08-01 00:00:00

abstract：:False intensive care unit (ICU) alarms induce stress in both patients and clinical staff and decrease the quality of care, thus significantly increasing both the hospital recovery time and rehospitalization rates. In the PhysioNet/CinC Challenge 2015 for reducing false arrhythmia alarms in ICU bedside monitor data, th...

journal_title：Physiological measurement

authors： Krasteva V,Jekova I,Leber R,Schmid R,Abächerli R

更新日期：2016-08-01 00:00:00

abstract：:False alarm (FA) rates as high as 86% have been reported in intensive care unit monitors. High FA rates decrease quality of care by slowing staff response times while increasing patient burdens and stresses. In this study, we proposed a rule-based and multi-channel information fusion method for accurately classifying ...

journal_title：Physiological measurement

authors： Liu C,Zhao L,Tang H,Li Q,Wei S,Li J

更新日期：2016-08-01 00:00:00

abstract：:This study investigates the cerebral hemodynamic changes during a routine sleep-deprived video-electroencephalogram (SD-VEEG) in healthy children. Forty-two children with normal intelligence were examined. The children were 5-14 years of age, and their electroencephalograms (EEGs) were within the normal range. Each su...

journal_title：Physiological measurement

authors： Peng B,Li J,Wang J,Liang X,Zheng Z,Mai J

更新日期：2016-07-01 00:00:00

abstract：:This observational study investigated digital auscultation for the purpose of assessing the clinical feasibility of monitoring vascular sounds in pregnancy. The study was performed at the Regional Hospital Viborg, Denmark, and included 29 pregnant women, 10 non-pregnant women and 10 male participants. Digital ausculta...

journal_title：Physiological measurement

authors： Riknagel D,Dinesen B,Zimmermann H,Farlie R,Schmidt S,Toft E,Struijk JJ

更新日期：2016-07-01 00:00:00

abstract：:Electrical impedance tomography (EIT) could be used as a portable non-invasive means to image the development of ischaemic stroke or haemorrhage. The purpose of this study was to examine if this was possible using time difference imaging, in the anesthetised rat using 40 spring-loaded scalp electrodes with applied con...

journal_title：Physiological measurement

authors： Dowrick T,Blochet C,Holder D

更新日期：2016-06-01 00:00:00