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*  Obstetric ultrasonography
... volume evaluation, fetal lung maturity, and general fetus well being. Second-trimester ultrasound screening for aneuploi- dies ... The most accurate measurement for dating is the crown-rump length of the fetus, which can be done between 7 and 13 weeks of ... "Statement on Measurement of the Fetal Heart Rate". Sound Waves Weekly. American Institute of Ultrasound in Medicine. November ... Bhanu Prakash, K.N.; Ramakrishnan, A.G.; Suresh, S.; Chow, T.W.P. (March 2002). "Fetal lung maturity analysis using ultrasound ...
*  List of MeSH codes (E01)
... lung compliance MeSH E01.370.386.700.485 --- lung volume measurements MeSH E01.370.386.700.485.750 --- total lung capacity MeSH ... expiratory reserve volume MeSH E01.370.386.700.485.750.275.650 --- residual volume MeSH E01.370.386.700.485.750.900 --- vital ... inspiratory reserve volume MeSH E01.370.386.700.485.750.900.350.750 --- tidal volume MeSH E01.370.386.700.615 --- ... maximal expiratory flow-volume curves MeSH E01.370.386.700.660.225.510 --- maximal midexpiratory flow rate MeSH E01.370.386.700 ...
*  Lung volumes
Dec 1986). "Accuracy of measured and predicted residual lung volume on body density measurement". Med Sci Sports Exerc. 18 (6 ... Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle. The ... Several factors affect lung volumes; some can be controlled and some cannot be controlled. Lung volumes vary with different ... Lung function fundamentals (anaesthetist.com) RT Corner (educational site for RT's and nurses) Volume of human lungs. ...
*  Structured light plethysmography
Measurement of lung volumes in real time, using optical plethysmography: Postgraduate Course: WS1 Educational Workshop: ... The thoracic volume is calculated from the volume beneath the reconstructed virtual surface and can be plotted in real time. ... Optical measurement of the change in trunk volume with breathing. Peacock A, Gourlay A, Denison D.Bull Eur Physiopathol Respir ... The technique used the distortion with movement of a structured pattern of light to calculate a volume or change in volume of a ...
*  Congenital diaphragmatic hernia
Work has been done to correlate survival rates to ultrasound measurements of the lung volume as compared to the baby's head ... In essence, the ECMO circuit acts as the baby's lungs. Babies require extra blood volume and hefty doses of blood thinners in ... Pulmonary hypoplasia or decreased lung volume is directly related to the abdominal organs presence in the chest cavity which ... Even though the baby is not using her lungs, an ocillating ventilator maybe still be used to keep some air in the lungs so that ...
*  Idiopathic pulmonary fibrosis
Measurement of static lung volumes using body plethysmography or other techniques typically reveals reduced lung volumes ( ... Plain chest X-rays are unfortunately not diagnostic but may reveal decreased lung volumes, typically with prominent reticular ... Idiopathic pulmonary fibrosis (IPF) belongs to a large group of more than 200 lung diseases known as interstitial lung diseases ... The latter finding reflects the increased lung stiffness (reduced lung compliance) associated with pulmonary fibrosis, which ...
*  Pulmonary surfactant
Lung compliance is defined as the volume change per unit of pressure change across the lung. Measurements of lung volume ... the surface tension varies according to the volume of air in the lungs, which protects them from atelectasis at low volumes and ... The lung's compliance decreases and ventilation decreases when lung tissue becomes diseased and fibrotic. As the alveoli ... extracted from cow lung lavage fluid (Survanta) - extracted from minced cow lung with additional DPPC, palmitic acid and ...
*  Impedance phlebography
... oscillometric blood pressure measurement and lung water volumes with minimal removal of clothing in physician offices having ... These measurements reflect blood volume changes, and can indirectly indicate the presence or absence of venous thrombosis. This ... When the cuff is released there is a rapid venous runoff and a prompt return to the resting blood volume. Venous thrombosis ... For leg veins, the test measures blood volume in the lower leg due to temporary venous obstruction. This is accomplished by ...
*  Airway resistance
... therefore specific airway resistance attempts to correct for differences in lung volume at which different measurements of ... Due to the elastic nature of the tissue that supports the small airways airway resistance changes with lung volume. It is not ... Similarly to specific airway resistance, specific airway conductance attempts to correct for differences in lung volume. ... Where V is the lung volume at which RAW was measured. Also called volumic airway resistance. ...
*  Lung compliance
Static lung compliance is the change in volume for any given applied pressure. Dynamic lung compliance is the compliance of the ... lung compliance and chest wall compliance influence Cdyn. Lung compliance is an important measurement in respiratory physiology ... Compliance is highest at moderate lung volumes, and much lower at volumes which are very low or very high. The compliance of ... Low compliance indicates a stiff lung and means extra work is required to bring in a normal volume of air. This occurs as the ...
*  Chronic obstructive pulmonary disease
... which allowed the measurement of vital capacity of the lungs. However, his spirometer could measure only volume, not airflow. ... surgery is sometimes helpful and may include lung transplantation or lung volume-reduction surgery, which involves removing the ... Lung bulla as seen on chest X-ray in a person with severe COPD A severe case of bullous emphysema Axial CT image of the lung of ... van Agteren, JE; Carson, KV; Tiong, LU; Smith, BJ (14 October 2016). "Lung volume reduction surgery for diffuse emphysema". The ...
*  Pulmonary function testing
The plethysmography technique applies Boyle's law and uses measurements of volume and pressure changes to determine lung volume ... There are four lung volumes and four lung capacities. A lung's capacity consists of two or more lung volumes. The lung volumes ... lung volumes and diffusing capacity in 2012. Changes in lung volumes and capacities are generally consistent with the pattern ... expiratory reserve volume (ERV), and residual volume (RV). The four lung capacities are total lung capacity (TLC), inspiratory ...
*  Pulmonology
... lung volumes, and diffusion capacity, the latter a measure of lung oxygen absorptive area Bronchoscopy with bronchoalveolar ... Laboratory investigation of blood (blood tests). Sometimes arterial blood gas measurements are also required. Spirometry the ... Percussion of the lung fields for dullness or hyper-resonance. Auscultation (with a stethoscope) of the lung fields for ... determination of maximum airflow at a given lung volume as measured by breathing into a dedicated machine; this is the key test ...
*  Cardiac output
The measurement of Stroke Volume Variation (SVV), which predicts volume responsiveness is intrinsic to all arterial waveform ... intrathoracic blood volume and extravascular lung water. Transpulmonary thermodilution allows for less invasive Q calibration ... 2D measurement of the aortic valve diameter is one source of noise; others are beat-to-beat variation in stroke volume and ... MRI flow measurements have been shown to be highly accurate compared to measurements made with a beaker and timer, and less ...
*  Respiratory system
The lungs expand and contract during the breathing cycle, drawing air in and out of the lungs. The volume of air moved in or ... and total lung capacity of about 6 liters) can therefore also not be measured by spirometry. Their measurement requires special ... If the volume of the lungs were to be instantaneously doubled at the beginning of inhalation, the air pressure inside the lungs ... Bird lungs are smaller than those in mammals of comparable size, but the air sacs account for 15% of the total body volume, ...
*  Kynurenine pathway
Increased serum kynurenine/tryptophan ratio correlates with disease progression in lung cancer. Lung Cancer Volume 67, Issue 3 ... S. 361-365, March 2010 Bernhard Widner, Ernst R. Werner, Harald Schennach, et al.: Simultaneous Measurement of Serum Tryptophan ... Life Sciences, Volume 71, Issue 16, 6. September 2002, Pages 1837-1848. Brian M.Campbell, Erik Charych, Anna W. Lee, Thomas ... Frontiers in Neuroscience Volume 8, Article 12. Stone, Trevor W. (2001). "Kynurenines in the CNS: from endogenous obscurity to ...
*  Vital capacity
Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle. Lung ... In combination with other physiological measurements, the vital capacity can help make a diagnosis of underlying lung disease. ... It is equal to the sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume. A person's vital capacity ... whereas lung capacities are inferred from volumes. The vital capacity can be used to help differentiate causes of lung disease ...
*  Medical sign
The recorded lung volumes and air flow rates are used to distinguish between restrictive disease (in which the lung volumes are ... an apparatus for assessing the mechanical properties of the lungs via measurements of forced exhalation and forced inhalation ... in which the lung volume is normal but the air flow rate is impeded; e.g., emphysema).) The 1851 invention by Hermann von ... Examples of signs include elevated blood pressure, a clubbing of the ends of fingers (which may be a sign of lung disease, or ...
*  Electrical impedance tomography
EIT lung imaging can resolve the changes in the regional distribution of lung volumes between e.g. dependent and non-dependent ... Thus, EIT measurements may be used to guide specific ventilator settings to maintain lung protective ventilation for each ... Time difference EIT can resolve the changes in the distribution of lung volumes between dependent and non-dependent lung ... In addition to visual information (e.g. regional distribution of tidal volume), EIT measurements provide raw data sets that can ...
*  Transpulmonary pressure
Lung volume at any given pressure during inhalation is less than the lung volume at any given pressure during exhalation. ... Measurement of transpulmonary pressure assists in spirometry in availing for calculation of static lung compliance. John B. ... For a given lung volume the transpulmonary pressure is equal and opposite to the elastic recoil pressure of the lung. The ... Since atmospheric pressure is relatively constant, pressure in the lungs must be higher or lower than atmospheric pressure for ...
*  Non-invasive procedure
... blood pressure measurement (using the sphygmomanometer), change in body volumes (using plethysmograph), audiometry, eye ... the auscultation of heart sounds and lung sounds (using the stethoscope), temperature examination (using thermometers), ...
*  Hymenaea courbaril
Brazilians use it internally to treat diseases of the lungs. It was formerly an ingredient of ointments and plasters, but at ... Volume 3, 3 (1891). 200-year-old tree in Mococa, Brazil.[citation needed] "The Plant List: A Working List of All Plant Species ... approximate measurements of hardness. For comparison, Douglas fir measures 660 lbf (2,900 N), white oak 1,360 lbf (6,000 N), ...
*  Tidal volume
... (symbol VT or TV) is the lung volume representing the normal volume of air displaced between normal inhalation and ... Tidal volume is measured in milliliters and ventilation volumes are estimated based on a patient's ideal body mass. Measurement ... Ventilator-induced lung injury such as ALI/ARDS can be caused by ventilation with very large tidal volumes in normal lungs, as ... In a healthy, young human adult, tidal volume is approximately 500 mL per inspiration or 7 mL/kg of body mass. Tidal volume ...
*  Helium dilution technique
... when the lung volume equals FRC), if the patient is initially connected to the spirometer at a different lung volume (like TLC ... In patients with obstructive pulmonary diseases the measurements of the helium dilution technique are not reliable because of ... total gas volume ( FRC + volume of spirometer) V1 = volume of gas in spirometer C1 = initial (known) helium concentration C2 = ... The helium dilution technique is the way of measuring the functional residual capacity of the lungs (the volume left in the ...
*  Air trapping
... leading to an elevated residual volume and a measurement of forced expiratory volume. Air trapping is often incidentally ... On diving the lung volume collapses and pushes air into the poorly aerated regions. On arising from a deep depth, these air- ... In the classic presentation, the lung will appear normal at inspiration, but on exhalation, the diseased portions of the lung ... trapped areas of lung expand. This places great pressure on the lung tissue which can rupture. U. Joseph Schoepf; "6.4.9.5 ...
*  Accounting
Management accounting focuses on the measurement, analysis and reporting of information that can help managers in making ... Volume 22, Number 2, Birmingham, Alabama, December 1995, p.124, Olemiss.edu Heeffer, Albrecht (November 2009). "On the curious ... Lung, Henry (2009). Fundamentals of Financial Accounting. Elsevier. "Auditors: Market concentration and their role, CHAPTER 1: ... Accounting or accountancy is the measurement, processing, and communication of financial information about economic entities ...
*  Clearance (pharmacology)
In pharmacology, the clearance is a pharmacokinetic measurement of the volume of plasma from which a substance is completely ... The total body clearance will be equal to the renal clearance + hepatic clearance + lung clearance. Although for many drugs the ... The elimination rate constant of a drug Κel is equivalent to total clearance divided by the distribution volume (Κel=Cltot/Vd)( ... Clearance, half-life and distribution volume There is an important relationship between clearance, elimination half-life and ...