Whole body plethysmography is an application whereby ventilatory parameters are measured while the subject is conscious and unrestrained. By the use of bias airflow supplies, CO2 levels, temperature and humidity are maintained at normal levels enabling measurements to be made over several hours. During inspiration there is a slight net pressure rise within theplethysmograph due to increased temperature and humidity of the air as it enters the subjects lungs (gas conditioning). During normal breathing, this pressure difference is directly proportional to the respiratory pattern of the subject, allowing the researcher to measure respiratory rate and tidal volume, in accordance with ICH S7 Guidelines. The system is commonly used in airway hyper-reactivity studieswhere, in addition to changes in ventilatory parameters, valuable data can obtained by quantifying changes in the shape of the respiratory waveform, e.g., Penh. However, it should be noted that when bronchoconstriction is present, the ...
Twenty infants, mechanically ventilated in the neonatal period for respiratory distress syndrome, were compared with 15 healthy controls, matched for birthweight(less than 1501 g) but greater in mean gestational age. Clinical features and lung mechanics (by whole body plethysmography) were recorded at 6-monthly intervals until about one year. THe neonatal course of the mechanically ventilated infants was commonly complicated by tracheobronchial hypersecretion and the later course by a fairly high incidence of lower respiratory tract illness. In this group, thoracic gas volume, dynamic compliance, pulmonary and airways conductance were all abnormal during the middle 4 months of the first year and reverted towards normal towards the end of the first year. The control group had normal lung mechanics. Early lung function tests were of limited value in predicting later lower respiratory tract illness, which was more common in boys, after neonatal mechanical ventilation for longer than 24 hours or ...
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Purpose: Asthma is associated with reversible airway obstruction, leucocyte infiltration, airways hyperresponsiveness (AHR) and airways remodelling. Fluid accumulation causes pulmonary oedema contributing to airways obstruction. We examined the temporal relationship between the late asthmatic response (LAR) following allergen challenge of sensitised guinea-pigs and pulmonary oedema measured by magnetic resonance imaging (MRI). Materials and Methods: Ovalbumin (OVA) sensitised guinea-pigs received either a single OVA inhalation (acute) or nine OVA inhalations at 48 h intervals (chronic). Airways obstruction was measured as specific airways conductance (sGaw) by whole body plethysmography. AHR to inhaled histamine and bronchoalveolar lavage for leucocyte counts were measured 24 h after a single or the final chronic ovalbumin challenges. MRI was performed at intervals after OVA challenge and high intensity oedemic signals quantified. Results: Ovalbumin caused early bronchoconstriction, followed at ...
Bernaerts, Frederique [Université de Liège - ULg , Département clinique des animaux de compagnie et des équidés , Département clinique des animaux de compagnie et des équidés ,] ...
The chemokine receptor CXCR4 and its chemokine CXCL12 are involved in the recruitment of immune and inflammatory cells as successfully demonstrated in the airways using agents that block either CXCL12 or CXCR4 (Hachet-Haas et al JBC 2008). We here highlight the unique relationship between pharmacokinetics and anti-asthmatic activity of chalcone 4, a CXCL12 neutraligand. Balb/c mice were sensitized (OVA+alum) and challenged (OVA or solvent, i.n., D17-20). Chalc4 or vehicle were administered i.n. 2h before each challenge. Chalc4 reduces airway hyperresponsiveness measured by whole body plethysmography (45±7%) and Flexivent® (37±5%), as well as eosinophilia (54±2%), IL5 (75±6% ) and mucus (84±2%) in BAL and lung collagen (78±8%). IgE in plasma and IL4 in BALF are not changed, indicating a downstream effect on sensitization. In addition, chalc4 reduces recruitment of M1 macrophages (62±4%), and their production of TNFα in response to CXCL12 (98±4%). In parallel, chalc4 significantly ...
Looking for impedance plethysmograph? Find out information about impedance plethysmograph. An instrument for measuring changes in the size of a part of the body by measuring changes in the amount of blood in that part Explanation of impedance plethysmograph
Lipopolysaccharide (LPS) contributes to asthma exacerbations and development of inhaled corticosteroid insensitivity. Complete resistance to systemic corticosteroids is rare and most patients lie on a continuum of steroid responsiveness. The objective of this study was to examine the sensitivity of combined ovalbumin- (Ova) and LPS-induced functional and inflammatory responses to inhaled and systemic corticosteroid in conscious guinea-pigs, to test the hypothesis that the route of administration affects its sensitivity. Guinea-pigs were sensitised to Ova and challenged with inhaled Ova alone or combined with LPS. Airways function was determined by measuring specific airways conductance via whole-body plethysmography. Airways hyperresponsiveness to histamine was determined pre- and 24h post-Ova challenge. Airways inflammation and underlying mechanisms were determined from bronchoalveolar lavage cell counts and lung tissue cytokines. Vehicle or dexamethasone was administered by once-daily ...
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VTG or Vtg may refer to: VTG AG, European rolling stock leasing company Vitellogenin (VTG) a type of protein Variable Turbine Geometry (VTG), see Variable geometry turbocharger Virtual tributary groups (VTG), terminology in computer networking, see Virtual concatenation and Virtual container Thoracic gas volume (VTG), a term used in Body plethysmography Xenoestrogens stimulate vitellogenin (Vtg), see Xenoestrogen Vita Group Limiteds code on the Australian Securities Exchange (ASX:VTG); post 2008 name of Australian mobile communications retailer Fone Zone See also VTG-32, a type of video timer produced by FOR- ...
A. 箱子4 當受測者在FRC的狀態下把門關閉成為密閉3先測量吸氣前箱子的壓力P1和體積V1》在吸氣後的瞬間測量箱子的壓力3由於胸腔擴展3箱子壓力提高為P23體積減少為V1-ΔV》 P1, V1, P2皆可以測量3由公式P1*V1=P2*(V1-ΔV)可算出ΔV3也就是受測者的吸氣量》 B. 受測者肺4 當受測者在FRC的狀態下3先測量吸氣前受測者的呼吸道壓力為P3(經由含住管子測得)3而受測者的FRC=V23為欲求的未知數》吸氣後受測者呼吸道壓力會下降為P4(同樣可經由含住管子測得)3呼吸道內氣體體積增加為V2+ΔV》 P3, P4可測量3而ΔV已從上式算得3故由公式P3*V2=P4*(V2+ΔV)可算得V23也就是FRC ...
This was an interesting study, because it showed what sRAW can and cannot do when compared to RAW and JPEG files. If your intention is to be able to recover white balance, the sRAW format has a definite advantage over JPEG as demonstrated in the first part of the article. Although there is definite loss of colors, you can recover most of the data when altering white balance, which is good news. Hence, if you want to have smaller RAW files and have the flexibility to change white balance, the sRAW format seems to be a viable option.. However, when it comes to recovering information from shadows and highlights, the sRAW format must be used with caution. First, you should not be using Adobe Camera RAW (Photoshop and Lightroom) for sRAW file conversion, since the Adobe RAW engine ends up heavily under-exposing images and losing more data in highlights, as demonstrated above. Capture NX-D clearly does a better job, but the software is very buggy and has its own set of problems (for example, ...
SUMMARY OF THE ANKC LTD SPECIAL BOARD MEETING HELD IN VICTORIA ON 10TH FEBRUARY, 2018 At the February 2018 ANKC Ltd Special Board meeting, Directors resolved/considered the following: Whole-Body Barometric Plethysmography Chamber It was RESOLVED that ANKC purchase a BOAS .... Read More » ...
While sRaw captures information on airflow resistance, it is important to realize that it is not a true measurement of airway resistance. Its units are cmH2O.s while typical airway resistance units would be cmH2O.s/mL. sRaw rather denotes work of breathing as it is defined by the product of airway resistance and the lung volume at the end of inspiration, the functional residual capacity or FRC. Since both factors can influence the outcome of sRaw and that there is an inverse relationship between them, best practice would be to complement measurements of sRaw with direct measurements of both upper and lower airway resistance. This would not only provide more insight in interpreting the results but also a refined and comprehensive assessment leading to a deeper understanding. The flexiVent system offers detailed lung function measurements which can prove helpful in identifying the response site within the lower airway segment while also providing direct upper airway resistance measurements. Both ...
1. Fenspiride is an anti-inflammatory agent that may have a role in reversible obstructive airways disease. Small, but significant, improvements have been seen in airways function and arterial oxygen tension in patients with mild chronic obstructive pulmonary disease. These changes have been attributed to the anti-inflammatory properties of the drug. However, airways function can be improved by other means, e.g. improved ventilation/perfusion ratio or reduced airways resistance. The possibility that fenspiride may have actions other than anti-inflammatory was investigated in two animal species. 2. In the rat, actions on the pulmonary circulation were investigated in the isolated perfused lung, but fenspiride proved to be a poor pulmonary vasodilator, showing only a small reversal of the raised pulmonary artery pressure induced by hypoxia. 3. Ventilation was measured in the anaesthetized rat using whole-body plethysmography. Fenspiride caused no increase in ventilation or changes in arterial ...
The fastest and most accurate way to assess body plethysmography and DLCO module for standard testing like lung volume(TGV,TLC,FRC etc ),slow vital capacity(SVC), maximum voluntary ventilation(MVV),MIP/MEP, respiratory drive, bronchial challenge test, absolute and specific conductance of airway(GAW/SGAW)absolute and specific airway resistance ...
Some PFTs involve the use of a spirometer. The spirometer is an instrument that measures the amount of air breathed in and/or out and how quickly the air is inhaled and expelled from the lungs while breathing through a mouthpiece. The measurements are recorded on a device called a spirograph.. Other test results are derived from calculations based on the results of certain spirometry procedures. In addition to measuring the amount and rate of air inhaled and exhaled, these tests can also indicate how well oxygen and carbon dioxide are being exchanged in the alveoli.. Some PFTs, such as thoracic gas volume or other lung volume measurements, may be determined by plethysmography. During plethysmography, a person sits or stands inside an air-tight box that resembles a short, square telephone booth to perform the tests.. The normal values for PFTs vary from person to person. The amount of air inhaled and exhaled in your test results are compared to the expected average in someone of the same age, ...
All measurement programs in the BodyBox are controlled by the powerful Expair software. Featured in the standard configuration are the following testing features.. Basic Spirometry: Including Forced Vital Capacity, Slow Vital Capacity, Maximum Voluntary Ventilation and Minute Tidal Ventilation including bronchochallenge testing software.. Absolute Static Lung Volumes: With the standard and accurate Thoracic Gas Volume testing, the BodyBox measures FRCpleth, VC, IC, ERV, RV and TLC.. Airways Resistance Testing: RAW and ...
The BOD POD Gold Standard Body Composition Tracking System is an air displacement plethysmograph which uses whole-body densitometry to determine body composition (fat and fat-free mass) in adults and children, and can accommodate a wide range of populations. A full test requires only about 5 minutes, and provides highly accurate, safe, comfortable, and fast test results. Each BOD POD Gold Standard is a complete turnkey system with a dedicated computer system, the ability to measure thoracic gas volume (TGV), and data management capabilities ...
Respiratory system is a very complex active structure made up by soft and hard tissues that move and interact during the breathing activity. During inspiration, respiratory muscles expand the rib cage to reduce the alveolar pressure and initiate a flow of fresh air from the mouth/nose trough the larynx, vocal cord and airways down to the alveoli. During the expiration, the elastic recoil of the lung and rib cage (and, during exercise, the expiratory muscular activity) "squeeze" the air from the alveolar region along the airways, vocal cord, larynx to be expelled through the mouth/nose. Diseases that alter these, dynamic interactions produce specific within breath changes in the mechanical properties of the lung. Differently from spirometry and body plethysmography, FOT can measure respiratory function during normal breathing and, therefore, has the potential to measure within breath physiological and pathological changes in mechanical properties of the lung at its normally operating lung volume. ...
Definition of pressure plethysmograph. Provided by Stedmans medical dictionary and Drugs.com. Includes medical terms and definitions.
Intra-operative Spinal Monitoring - Two Nicolet Viking IV Electrophysiologic Systems and one Magstim-250 magnetic nerve stimulator were set-up in the operation theatres for spinal cord intra-operative monitoring and for research applications. Various evoked potentials detection and EMG Muscular Evaluation equipment are also located in this laboratory. Multi-channel functional electrical stimulator supported with orthosis was developed in this laboratory for paraplegic walking training. A dynamic three-dimensional forces and movements detection system has been developed to evaluate the performance of paraplegic walking under FES. The laboratory also has a SensorMedics 6200 Autobox DL whole body plethysmograph instrument for a complete, rapid and accurate measurement of lung function. ...
A ring plethysmograph having a pressure adjustment for locally pressurizing one side of a finger thereby biasing the pressure on an artery wall so that the plethysmograph is optimally sensitive without interfering with blood flow. An auxiliary photodetector, possibly with a second light source, is disposed on the low-pressure side of the finger for two purposes: providing a noise reference for canceling noise on the plethysmograph signal, and also for providing a separate motion signal for monitoring the activity level of a patient.
Grading the severity of obstruction in mixed -obstructive-restrictive lung disease. Chest 140:598-603, 2011. 7. Krowka MJ, Enright PL, Rodarte JR, Hyatt RE. Effect of effort on measurement of forced -expiratory volume in one second. Am Rev Respir Dis 136:829-833, 1987. indd 34 30/01/14 10:36 AM 4 Diffusing Capacity of the Lungs An important step in the transfer of oxygen from ambient air to the arterial blood is the process of diffusion, that is, the transfer of oxygen from the alveolar gas to the hemoglobin within the red cell. 1 gives: PB VF = (PB + ∆P)(VF − ∆V) Piston and: Simplifies to: VF = ∆V (PB + ∆P) ∆P VF = ∆V (PB) ∆P FIG. 3-6. The subject is seated in an airtight plethysmograph and the pressure in the plethysmograph (Ppleth) changes with changes in lung volume. When the subject stops breathing, alveolar pressure equals barometric pressure (Pb). Consider what happens if the valve at the mouth is closed at the end of a quiet expiration, that is, FRC, and the subject makes ...
A membrane system is positioned within an insulated enclosure heated to maintain superheat conditions for the feed gas to the system, wherein individual membrane modules are not insulated. The feed gas compression heat is desirably used to supply the superheat to the feed gas within the insulated enclosure.
What women want isnt a mystery. They want men who can read their minds and know instinctively how to be their provocateurs while giving them the gentleness they seek and yet the ravishing they desire. It isnt about sex, its about fulfillment, loyalty, fealty, and most of all, that all to important emotional bond. Look at all the great loves throughout history and see, what is it they all have in common? Its the males ability to emotionally bond with his female and her desires/needs/wants. But dont think for a minute its a one way street from male to female as if she were some kind of succubus. It isnt. If the man gets it right, he gets it all. ...
You can see a slight glow in the IR emitter (on the left) because the camera is slightly sensitive to infrared light. The Phototransistor is the black device just to the right of the thumb in the last image. The black color is caused by a filter in the plastic body of the phototransistor which blocks visible light. A slow analog input program shows how to set up the DAQ interface for one channel, and plots the data without scrolling. You will need to make a movie of your scrolling data. The following code (taken from the Matlab command ...
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en] The objective of this study was to investigate whether high-dose inhaled fluticasone propionate (FP), alone or in combination with salmeterol (SAL), is as effective as oral prednisolone in reducing airway inflammation and obstruction in cats with experimentally-induced acute asthma. Six cats sensitised to Ascaris suum (AS) were enrolled in a prospective controlled therapeutic trial and underwent four aerosol challenges, at 1-month intervals with AS allergen. The allergen - stimulated animals received four consecutive days treatment with either oral prednisolone at 1mg/kg twice daily, 500μg of FP inhaled twice daily, or a combination of FP/SAL at 500μg/50μg inhaled twice daily, respectively, according to a randomised cross-over design. Treatment-related changes in lung function, airway responsiveness (AR) and bronchoalveolar lavage fluid (BALF) cytology were assessed. Barometric whole-body plethysmography (BWBP) was used for the assessment of respiratory variables and AR. No significant ...
Background: Sublingual immunotherapy (SLIT) efficacy could be improved by formulations facilitating allergen contact with the oral mucosa and uptake by antigen-presenting cells (APCs).. Methods: Two types of chitosan microparticles, differing in size and surface charge, were tested in vitro for their capacity to improve antigen uptake and presentation by murine bone marrow-derived dendritic cells (BMDCs) or purified oral APCs. T-cell priming in cervical lymph nodes (LNs) was assessed by intravenous transfer of carboxyfluorescein diacetate succinimidyl ester-labelled ovalbumin (OVA)-specific CD4+ T cells and flow cytometry analysis. Ovalbumin-sensitized BALB/c mice were treated sublingually with soluble or chitosan-formulated OVA twice a week for 2 months. Airway hyperresponsiveness (AHR), lung inflammation and T-cell responses in cervical and mediastinal LNs were assessed by whole-body plethysmography, lung histology and Cytometric Bead Array technology, respectively.. Results: Only a ...
Experiments were performed on littermate control (Kv1.1+/+), heterozygous (Kv1.1+/-), and null (Kv1.1-/-) mice. Breeding pairs were purchased from The Jackson Laboratory (Bar Harbor, ME), and offspring were genotyped as previously described (Zhou et al., 1998). All of the experimental protocols were in compliance with the Case Western Reserve University Institutional Animal Care and Use Committee guidelines.. Measurement of respiratory variables. In unanesthetized animals, respiration was monitored by whole-body plethysmography as previously described (Kline et al., 2002a). Briefly, animals were placed in a 600 ml Lucite chamber that contained an inlet port for gas administration and an outlet port for airflow and gas sampling. The chamber was connected to a high-gain differential pressure transducer (Valydine MP45; Validyne, North Ridge, CA). As the animal breathed, changes in pressure were converted to signals representing tidal volume (VT), which were amplified (BMA 830; CWE, Ardmore, PA), ...
Forearm and calf blood flow will be measured independently by venous occlusion plethysmography using mercury-in-silastic strain gauges. Plethysmographic measurements will be made at rest and following 5 minutes of ischemia (reactive hyperemia) of the distal limb (forearm and calf). Peak blood flow will be determined as the highest flow recorded during the post deflation period. Total blood flow will be measured as the area under the time-curve after resting flow is subtracted. Vascular conductance will be calculated using blood flow/mean arterial pressure (via finger plethysmograph ...
Amount Of Air Flow Chart And P Spirometry Static Lung Volumes Diffusing Capacity Amount Of Air Flow Chart A And P Flowcharts flowchart template flowchart software flowchart examples Pencil is another cool flowchart app for Mac that comes directly from the companys website. You will see a nice clear app interface and canvas to work with as soon as you open it. There is a complete set of flowchart objects, but for doing even more with the app, you can use web elements, widgets, and mobile stencils. Find Your Next Flowcharts
Body composition in infancy may be of importance for later health. In particular, infant body composition may be relevant regarding obesity risk in childhood. Recent advances in body composition methodology using air displacement plethysmography (ADP) have provided possibilities to accurately measure body composition of infants in a quick and non-invasive manner. The aims of this thesis were to study associations of parental body composition using ADP, glucose homeostasis during pregnancy and infant genetics with infant body composition also using ADP. When using ADP in adults, a correction for the thoracic gas volume (TGV) is needed and TGV can be predicted using equations developed in nonpregnant adults. Thus another aim was to study the validity of using such equations during pregnancy.. Parent couples were invited to this study at a routine visit to a maternity clinic in Linköping between September 2008 and October 2010. When the mother was in gestational week 32, parental body composition ...
Spirometry measures airflow. By measuring how much air you exhale, and how quickly, spirometry can evaluate a broad range of lung diseases. In a spirometry test, while you are sitting, you breathe into a mouthpiece that is connected to an instrument called a spirometer. The spirometer records the amount and the rate of air that you breathe in and out over a period of time.. For some of the test measurements, you can breathe normally and quietly. Other tests require forced inhalation or exhalation after a deep breath. Sometimes you will be asked to inhale the substance or a medicine to see how it changes your test results.. Lung volume measurement can be done in two ways:. - The most accurate way is to sit in a sealed, clear box that looks like a telephone booth (body plethysmograph) while breathing in and out into a mouthpiece. Changes in pressure inside the box help determine the lung volume.. - Lung volume can also be measured when you breathe nitrogen or helium gas through a tube for a ...
Aim of this study is the characterization of patients with mild cystic fibrosis in terms of lung function, bronchial hyperreactivity and the degree of systemic and bronchial inflammation.. Sputum and serum samples are analyzed by quantitative real-time polymerase chain reaction(qRT-PCR) and by cytometric bead assay (CBA). Components of the innate immune system (mannose-binding protein, TLR recognition proteins and surfactant proteins) are genetically determined from sputum or blood respectively. In order to support the analyzed lung function and sputum/ serum biomarker data the investigators will also rely on pre-existing imaging data like chest x-rays or high-resolution computer tomography (HRCT)of the lungs.. Methods and Work Programme:. This study consists of two study visits (V1 and V2). V1:. Measurement of nitric oxide in exhaled air (eNO) Measurement of carbon monoxide in exhaled air (eCO) Lung function testing with spirometry and body plethysmography Blood test: blood count, CRP, RAST, ...
... ,Both the Penilab IV and the Penilab V have an exceptionally sensitive plethysmograph for penile and digital studies. Model 1060 is similar to the Model 1061 shown below, but does not have the doppler nor can one be added later. The Penilab V has a Doppler. These are ready-to-use systems includin,medicine,medical supply,medical supplies,medical product
No, I have DILV and TGV, double inlet left ventricle and transpostion of the great vessels. Im not really sure how they did it all. All I know that is...
With the exception of arterial blood gas, pulse oximetry, and total lung capacity, pulmonary function tests are performed using spirometry (from the Greco-Latin term meaning to measure breathing). Spirometry tests can be done a hospital or doctors office. The patient places a clip over the nose and breathes through the mouth into a tube connected to a machine called a spirometer. The patient breathes in deeply, and then exhales as quickly and forcefully as possible into the tube. The machine records the volume of air that moves through the tube. The exhalation must last at least six seconds for the machine to work properly. Usually the patient repeats this test three times, and the best of the three results is considered the measure of the lung function. A similar machine called a peak flow meter may be used to measure PERF. Sometimes when airways are obstructed, the patient is given a bronchodilator, and the test is performed again. Total lung capacity is measured by body plethysmography. ...
Respiratory resistance at 20 Hz (R20) by impulse oscillometry (IO) characterizes airways resistance with inextensible walls. Airways resistance (Rtot) by body plethysmography reflects the total resistance of the first 8 - 10 bronchi generations. These indicators by different methods are close physiologically. The airways in patients with an emphysema are deprived of elastic support, so a lung compliance (CL) considerably increases. We have assumed that shunting of R20 increases with loss of lung elastic recoil.. Aim of the study is evaluation loss of respiratory resistance by IO with increasing of compliance and decreasing of lung elastic recoil.. Materials and methods: We compared Rtot and R20 in 67 healthy volunteers (32F/35M, 47±1 yrs) and in the patients with obstructive disorders - 41 patients with COPD (0F/41M, 56±1 yrs) and 52 patients with bronchial asthma (34F/18M, 47±2 yrs). We have used the relation Rtot/R20. All patients were performed investigation of lung elasticity using ...
IPF is often misdiagnosed when physiological or imagine data suggest the presence of ILD leading to delay in accessing appropriate care.. After diagnosis of IPF, and appropriate treatment choice according to symptoms and stage of diseases, a close follow-up should be applied.. Due to the high variable course of disease, the higher incidence of complications like lung cancer, a routine evaluation every 3 to 6 months, including spirometry (body plethysmography) diffusion capacity testing, chest x-ray, 6MWT, assessment of dyspnea, quality of life, oxygen requirement is mandatory.. For more visit www.modernhomeopathy.co.in ...
Plethysmography was found in Nursing Central. Nursing Central is an award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms.
I have noticed that sometimes as Im falling asleep, or soon after, its kind of hard to discern the two. I am awaken by my whole body in a way, spasming, but its almost as if ive been shocked, just wi...
METHODS: Nitrogen-based multiple-breath washout, spirometry, and body plethysmography tests were performed 30 min before autogenic drainage in adults with stable non-cystic fibrosis bronchiectasis. The autogenic drainage session was followed by a 5-min break, after which the tests were repeated in the same order. Sputum expectorated during autogenic drainage was quantified as dry weight and correlated with change between post- and pre-measurements (Δ). Paired t test or Wilcoxon signed-rank tests were used to compare pre- and post-autogenic drainage measurement outcomes. A P value of ≤.05 was considered as statistically significant. ...
Penile plethysmography is amongst the best measures for prediction of sexual recidivism and has been extensively researched. However, there are a variety of criticisms regarding use of penile plethysmography (PPG), including financial investment, significant training needs, lack of standardization, intrusive nature of the measure, extensive time for testing, and inability to use PPG with all groups of sexual offenders (e.g., women and adolescents). Viewing time has been studied, though not as extensively as PPG, regarding detection of sexual interest. This study examined the relationship between Monarch 21 PPG and Affinity viewing time variables, including responses to individual stimuli, a sex deviance differential, and a sex deviance ratio. It was predicted that there would be a significant positive correlation between key variables of the Monarch 21 PPG and Affinity. Overall, the associations found between the Monarch 21 PPG and the Affinity were significant, although the magnitudes of the
A method and system are provided for detecting various vascular conditions using an occlusive arm cuff plethysmograph. The system includes data acquisition hardware, including the occlusive arm cuff plethysmograph, for obtaining arterial and endothelial function data from a patient, processing means utilizing application or analysis software for analyzing the arterial and endothelial function data, and a database of computer models, such as brachial artery pressure versus lumen area curves (P-A curves) and brachial artery pressure versus compliance curves (P-C curves), developed by analyzing data for a plurality of subjects where their vascular conditions were known. The processing means diagnoses and predicts various vascular conditions pertaining to the patient by comparing or correlating the analyzed arterial and endothelial function data with the computer models stored within the database and presents the findings on a display.
Halcyon pneumotach cancels out noise by ensuring both sensing ports on the differential pressure transducer measure the same pressure from an atmospheric event.
Airway resistance is the resistance to the flow of air through the respiratory tract during inhalation and expiration. The level of resistance depends on many things, particularly the diameter of the airway and whether flow is laminar or turbulent. In this article we shall consider how these factors affect the air flow, and consider some clinical conditions in which airway resistance is affected.
5.3 Airway Resistance - Shock Losses for Bends and Area Changes - Free download as PDF File (.pdf), Text File (.txt) or read online for free.