Accuracy of the expiratory (solid circles) and inspiratory (open
Accuracy of Mid Expiratory Flow and Dysanapsis Parameters for Evaluation of Methacholine Provocation Test
... Diagnosis of asthma requires evaluation of forced expiratory volume in one second (FEV1) and forced vital capacity (FVC). In moderate and severe forms of disease, FEV1 and FEV1/FVC ratio are usually decreased and ...
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Accuracy and precision of end expiratory lung volume measurements by automated nitrogen washout/washin technique in patients with acute respiratory distress syndrome
... diaphragm inactivity, and cardiac enlargement [1-5]. Measuring FRC (or end-expiratory lung volume [EELV] when PEEP is applied) might help to measure the aera- ted lung available for ventilation and to better ...
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Inspiratory and Expiratory ResistancesDuringExercise
... Clinical Significance: Measurements of respiratory resistance and vocal cord images during or immediately following exercise, which both require exclusive access to the mouth, cannot be made simultaneously, but this ...
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“Expiratory holding” approach in measuring end-expiratory pulmonary artery wedge pressure for mechanically ventilated patients
... Finally, the sensors used for patients and the amount of paper printing required can increase certain medical costs. In our “expiration holding” approach, the results are as accurate as those from the FACTT approach; 4 ...
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Maximum static inspiratory and expiratory pressures with different lung volumes
... Satisfactorily describing maximum lung pressures with mathematical expressions can be helpful for respiratory mechanical modeling [3]. It is not likely that maximal pressures would be developed in young, healthy adults ...
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Spirometry in patients with COPD: focus on expiratory ànd inspiratory parameters
... of expiratory airflow ...Forced Expiratory Volume in 1 second (FEV1) after inhalation of bronchodilators is low ...in inspiratory flow ...forced inspiratory volume in 1 second (FIV1), but not ...
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Expiratory and Inspiratory Cries Detection Using Different Signals' Decomposition Techniques
... PROPOSED METHODOLOGY The basic contribution of this paper is the proposition of a prac- tical cry sounds segmentation system with the ability to detect audible expiratory and inspiratory cry episodes. This ...
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Expiratory and inspiratory cries detection using different signals' decomposition techniques
... PROPOSED METHODOLOGY The basic contribution of this paper is the proposition of a prac- tical cry sounds segmentation system with the ability to detect audible expiratory and inspiratory cry episodes. This ...
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The differential effects of inspiratory, expiratory, and combined resistive breathing on healthy lung
... raising expiratory resistance increased expiratory time constants (ie, the product of Cst and resistance) leading to incomplete lung emptying and, therefore, end-expiratory lung volume elevation and ...
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Paired inspiratory-expiratory chest CT scans to assess for small airways disease in COPD
... The large number of subjects with quantitative analysis of inspiratory and expiratory chest CT scans is one of the strengths of the COPDGene study. The sample size in COPDGene is nearly ten times as large ...
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Quantitative Assessment of Air Trapping Using Inspiratory and Expiratory Low Dose Computed Tomography
... The disadvantage of low-dose settings is the increase in image noise. Boone et al. evaluated the relationship between image noise and radiation dose reduction in CT, and they reported that image noise increases at lower ...
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Effect of Dialysis on Maximum Inspiratory and Expiratory Pressures in End Stage Renal Disease Patients
... Several mechanisms have been suggested for improvement of muscle strength post-dialysis. Other studies showed that lung volumes frequently decrease in chronic renal failure but remain essentially stable during the ...
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Integration of inspiratory and expiratory intra-abdominal pressure: a novel concept looking at mean intra-abdominal pressure
... Abdominal compartment syndrome - intra-abdominal hypertension: defining, diagnosing, and managing. J Emerg Trauma Shock 2011, 4(2):279-291. 12. Verzilli D, Constantin JM, Sebbane M, Chanques G, Jung B, Perrigault PF, ...
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Positive end-expiratory pressure attenuates hemodynamic effects induced by an overload of inspiratory muscles in patients with COPD
... the inspiratory muscles associated or not with external ...both inspiratory and expiratory phases using echocardiography, which can help in the accurate estimation of cardiac ...to expiratory ...
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3D-measurement of tracheobronchial angles on inspiratory and expiratory chest CT in COPD: respiratory changes and correlation with airflow limitation
... on inspiratory and expiratory CT may play an important role and can inform 3D printing of stents and the tracheobronchial tree ...perform inspiratory and expiratory CT scans in patients ...
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Combination of inspiratory and expiratory muscle training in same respiratory cycle versus different cycles in COPD patients: a randomized trial
... combined inspiratory and expiratory muscle training in COPD patients, and the effect of combined training remains ...both inspiratory and expiratory muscle in same re- spiratory cycle) and ...
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Dynamic change in respiratory resistance during inspiratory and expiratory phases of tidal breathing in patients with chronic obstructive pulmonary disease
... the inspiratory and expiratory phases were significantly different between mild and moderate COPD can be explained by this ...that inspiratory ∆ Rrs at 35 Hz was significantly greater in moderate ...
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Expiratory CT scan in patients with normal inspiratory CT scan: a finding of obliterative bronchiolitis and other causes of bronchiolar obstruction
... Small airways comprise airways of < 2mm in internal diameter [13]. Traditionally, small airways are considered a “silent zone” of the lungs [14] because they cover a vast cross-surface area and airway volume vs large ...
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Random variation of inspiratory lung function parameters in patients with COPD: a diagnostic accuracy study
... IC- Inspiratory Capacity; FIV1 = Forced Inspiratory Flow in One second; MIF50 = Maximal Inspiratory Flow at 50%; PIF = peak Inspiratory Flow; SD = stan- dard ...
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Respiratory Changes in the Superior Vena Cava Area on Inspiratory and Expiratory Chest CT: Comparison between Patients with COPD and with Bronchial Asthma
... and expiratory scans (i/e-SVC ratio) in 66 patients with COPD and 16 patients with ...by inspiratory and expiratory com- puted tomography (CT) images were ...forced expiratory vo- lume in 1 ...
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