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Dissertations / Theses on the topic 'Forced oscillation technique'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Wouters, Emiel Frans Maria. "Bronchial response in COPD measured by forced oscillation technique." Maastricht : Maastricht : Rijksuniversiteit Limburg ; University Library, Maastricht University [Host], 1987. http://arno.unimaas.nl/show.cgi?fid=5376.

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2

Macleod, Dominic Paul. "Use of a within-breath forced oscillation technique : development and clinical applications." Thesis, University College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298301.

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3

Everson, Daniel Peter. "Development of a forced oscillation test technique for determination of MAV stability characteristics." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/3236.

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Thesis (M.S.) -- University of Maryland, College Park, 2005.<br>Thesis research directed by: Dept. of Aerospace Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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4

Gangell, Catherine Louise. "Evaluation of the forced oscillation technique for clinical assessment of young children with cystic fibrosis." University of Western Australia. School of Paediatrics and Child Health, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0213.

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Background: Measurements of lung function are routinely used in patients with cystic fibrosis (CF) to provide information that may be clinically relevant. Spirometry is the conventional lung function measurement used, however young children find spirometry difficult to perform and often cannot achieve the strict acceptability criteria for the test. The forced oscillation technique (FOT) is a lung function measurement that only requires tidal breathing and is easy for young children to perform. However, there is limited information about the utility of this technique in the clinical assessment

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5

Kostic, Peter. "New methods for optimization of mechanical ventilation." Doctoral thesis, Uppsala universitet, Anestesiologi och intensivvård, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-249172.

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Mechanical ventilation saves lives, but it is an intervention fraught with the potential for serious complications. Prevention of these complications has become the focus of research and critical care in the last twenty years. This thesis presents the first use, or the application under new conditions, of three technologies that could contribute to optimization of mechanical ventilation. Optoelectronic plethysmography was used in Papers I and II for continuous assessment of changes in chest wall volume, configuration, and motion in the perioperative period. A forced oscillation technique (FOT)

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6

Heijkenskjöld, Rentzhog Charlotte. "Towards Improved Diagnostics and Monitoring in Childhood Asthma : Methodological and Clinical Aspects of Exhaled NO and Forced Oscillation Technique." Doctoral thesis, Uppsala universitet, Institutionen för kvinnors och barns hälsa, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304264.

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Background: Asthma is a heterogeneous disease. Diagnosis relies on symptom evaluation and lung function tests using spirometry. Symptoms can be vague. Spirometry is effort-dependent and does not reliably evaluate small airways. Allergic asthma in preschool children is not easily separated from episodic wheeze. Exhaled NO (FeNO) is a marker of allergic Th2-cytokine-driven airway inflammation. However, FeNO is not feasible in preschoolers with current devices and algorithms. Alveolar NO is an estimate of small airway involvement. Forced oscillometry (FOT) is an effort-independent lung function t

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7

Nirav, Daphtary. "Lung Impedance Measurements Using Tracked Breathing." ScholarWorks @ UVM, 2010. http://scholarworks.uvm.edu/graddis/162.

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The forced Oscillation Technique (FOT) can be used to measure lung impedance continuously during breathing. However, spectral overlap between the breathing waveform and the applied flow oscillation can be problematic if the frequency content of spontaneous breathing is unknown. This problem motivated us to develop a modification to the FOT system called the Tracked Breathing Trainer. The modification uses biofeedback to constrain subjects to breathe at a single predetermined frequency. This thesis investigates the engineering and physiological aspects of the modification we made. We studied 8

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8

Tramont, Caio Vinícius Villalón. "Análise das alterações decorrentes do envelhecimento na mecânica respiratória pela técnica de oscilações forçadas." Universidade do Estado do Rio de Janeiro, 2009. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2269.

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O crescimento do percentual de idosos na população ocorre mundialmente tornando necessário conhecer o impacto do processo de envelhecimento, neste contexto, do sistema respiratório. O desconhecimento do impacto do envelhecimento associado a diferentes graus de exposição a poluentes e a presença de comorbidade(s) dificulta a diagnose das pneumopatias acarretando aos idosos piora da qualidade de vida. São vantagens da Técnica de Oscilações Forçadas (FOT): alto potencial de aplicação em idosos, fácil realização, análise detalhada da mecânica respiratória, desempenho de papel complementar, bem co

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9

Peleteiro, Paula Morisco de Sá. "O uso da Técnica de Oscilações Forçadas na análise da mecânica ventilatória de indivíduos portadores de silicose classificados em diferentes graus de obstrução." Universidade do Estado do Rio de Janeiro, 2011. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=6294.

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O termo silicose refere-se ao processo de fibrose pulmonar causado pela inalação de poeira contendo sílica. É uma doença ocupacional, incurável, que se inicia nas vias aéreas distais e pode progredir independente do término da exposição. Os testes de função pulmonar, apesar de não serem utilizados como ferramenta diagnóstica para silicose, são amplamente empregados para acompanhar longitudinalmente esses indivíduos. Estudos recentes sugerem que a Técnicas de Oscilações Forçadas (FOT) pode ser aplicada para detecção de alterações pulmonares precoces em indivíduos com silicose. Contudo, existem

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10

Souza, Georgia Alencar Franco de. "Análise das alterações de mecânica respiratória e da resposta broncodilatadora em crianças asmáticas por meio da Técnica de oscilações Forçadas." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2104.

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O aprofundamento de nosso conhecimento acerca das alterações da mecânica respiratória e da resposta ao uso do broncodilatador em crianças com asma pode contribuir para o melhor entendimento desta doença. A técnica de oscilações forçadas (FOT) apresenta elevado potencial neste sentido, pois permite uma avaliação detalhada da mecânica respiratória de crianças asmáticas. Desta maneira, os objetivos deste estudo são: (1) aprofundar nosso conhecimento sobre as alterações de mecânica respiratória em crianças asmáticas; (2) investigar o potencial de utilização clínica da FOT e (3) analisar as alteraç

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11

Jonasson, Sofia. "Lung mechanics and airway inflammation in murine models of asthma." Doctoral thesis, Uppsala universitet, Klinisk fysiologi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-107061.

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Allergic asthma is an inflammatory disease of the airways and is characterized by eosinophilic inflammation and increased airway reactivity. In the studies presented in this thesis, lung mechanics and measurements of airway reactivity were assessed in anaesthetized tracheostomized mice by using an animal ventilator (flexiVent®). A forced oscillation technique makes it possible to measure of both airway and tissue mechanics with a potential to distinguish between central and peripheral airways. The results of the experiments on lung mechanics imply that it is important to understand how altered

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12

Hund-Huart, Muriel. "Etude des transferts interfaciaux en extraction liquide-liquide sous champ électrique." Paris, ENMP, 1988. http://tel.archives-ouvertes.fr/tel-00845221.

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L'étude expérimentale du transfert de matière est réalisée pour 3 systèmes ternaires mettant en jeu principalement des molécules plutôt que des ions. Deux phénomènes sont observés: un effet électrostatique (orientation des molécules) et un effet électrodynamique (modification de la tension interfaciale). Un contacteur à électrode externe, soumis à des oscillations forcées est utilisé pour l'extraction de l'acide acétique. Lorsque la fréquence des oscillations est égale à la fréquence de résonance naturelle des gouttes on observe une diminution de la vitesse de chute et une augmentation du coef

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13

Costa, Bruno Bittencourt da. "Desenvolvimento de um aparelho portátil que emprega a técnica de oscilações forçadas para estudo do sistema respiratório." Universidade Federal de Sergipe, 2012. https://ri.ufs.br/handle/riufs/5017.

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The use of forced oscillation technique (FOT) to study the mechanical properties of the respiratory system was proposed by Dubois (1956). This technique allows studying the mechanical behavior of the respiratory system, and from models, extracting features of pulmonary mechanics that would be barely noticeable by other methods. The object of this work was to build a portable device that uses the forced oscillation technique so that tests could be performed in locations with limited space. The device of TOF2 was remodeled from an early version called TOF1. Its components are integrated by repl

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14

Klein, Carmen. "Sonographie der Lunge und Analyse der Atmungsmechanik mittels Impuls-Oszilloresistometrie beim lungengesunden und pneumoniekranken Ferkel und Läuferschwein." Doctoral thesis, Universitätsbibliothek Leipzig, 2004. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-36551.

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Carmen Klein: Sonographie der Lunge und Analyse der Atmungsmechanik mittels Impuls-Oszilloresistometrie beim lungengesunden und pneumoniekranken Ferkel und Läuferschwein Institut für Bakteriologie und Mykologie der Veterinärmedizinischen Fakultät der Universität Leipzig Bundesinstitut für gesundheitlichen Verbraucherschutz und Veterinärmedizin (BgVV), Fachbereich 4 in Jena eingereicht im Mai 1999, verteidigt am 16. November 1999 (157 Seiten, 52 Abbildungen, 34 Tabellen, 285 Literaturstellen; Anhang mit: 62 Seiten, 15 Abbildungen und 50 Tabellen) Mit der Sonographie der Lunge und der Impuls-Osz

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15

Baraket, Melissa, and mbaraket@med usyd edu au. "Comparison of the effects of low dose and high dose inhaled corticosteroid treatment of mild to moderate asthma in adults." University of Sydney, 2008. http://hdl.handle.net/2123/4855.

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Doctor of Philosophy (PhD)<br>Asthma is a chronic inflammatory disease of the airways. Corticosteroid medication is the most effective currently available treatment. Complications of corticosteroid therapy are dose-dependent, however, the clinical efficacy of varying doses of inhaled corticosteroids has been studied with mixed results. A randomized, double-blind, parallel group study was used to evaluate the inhaled corticosteroid dose-response relationship for clinical endpoints and in vitro parameters of underlying airway inflammation and remodelling. The mannitol provocation test with Force

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16

Bossé, Dominick. "Étude de la mécanique respiratoire par la technique des oscillations forcées au cours de la ventilation liquidienne totale." Mémoire, Université de Sherbrooke, 2009. http://savoirs.usherbrooke.ca/handle/11143/4005.

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Background : This study aimed to implement low-frequency forced oscillation technique (LFFOT) in neonatal total liquid ventilation (TLV) and to provide the first insight into respiratory impedance under this new modality of ventilation. Method. Thirteen newborn lambs weighing 2.5 « 0.4 kg (mean « SD) were premedicated, intubated, anesthetized, and then placed under TLV using a specially-design liquid ventilator and a perfluorocarbon. The respiratory mechanics measurements protocol was started immediately after TLV initiation. Three blocks of measurements were first performed: one during initia

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17

Mori, Vitor. "Impedância respiratória de entrada: comparação entre os métodos convencional e de wavetube." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/3/3154/tde-22072016-164428/.

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A impedância respiratória de entrada pode ser obtida pela Técnica das Oscilações Forçadas (FOT) através de dois métodos diferentes: convencional e de wavetube. Nessa dissertação, primeiramente realizamos uma revisão bibliográfica com enfoque nos assuntos de interesse para esse trabalho, como definições e modelagem de impedância, descrições e bases teóricas para a realização dos dois métodos e descrição dos equipamentos utilizados por cada um dos métodos. A partir de dados experimentais da impedância, em camundongos machos do tipo BALB/c normais, obtidos em dois equipamentos diferentes fez-se u

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18

Klein, Carmen. "Sonographie der Lunge und Analyse der Atmungsmechanik mittels Impuls-Oszilloresistometrie beim lungengesunden und pneumoniekranken Ferkel und Läuferschwein." Doctoral thesis, 2000. https://ul.qucosa.de/id/qucosa%3A10874.

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Carmen Klein: Sonographie der Lunge und Analyse der Atmungsmechanik mittels Impuls-Oszilloresistometrie beim lungengesunden und pneumoniekranken Ferkel und Läuferschwein Institut für Bakteriologie und Mykologie der Veterinärmedizinischen Fakultät der Universität Leipzig Bundesinstitut für gesundheitlichen Verbraucherschutz und Veterinärmedizin (BgVV), Fachbereich 4 in Jena eingereicht im Mai 1999, verteidigt am 16. November 1999 (157 Seiten, 52 Abbildungen, 34 Tabellen, 285 Literaturstellen; Anhang mit: 62 Seiten, 15 Abbildungen und 50 Tabellen) Mit der Sonographie der Lunge und der Impuls-Osz

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