Results 21 to 30 of about 592,447 (342)

Measurement of lung volumes by plethysmography [PDF]

European Respiratory Journal, 1997
There are various ways of measuring absolute lung volume. These range from measurements derived from chest radiographs to the more common laboratory measurements employing either gas dilution or plethysmography. The principal difference between the latter two methods is that gas dilution techniques measure gas that is in free communication with the ...
A L, Coates, R, Peslin, D, Rodenstein, J, Stocks   +3 more
openaire   +2 more sources

The influence of end-expiratory lung volume on measurements of pharyngeal collapsibility

Journal of applied physiology, 2009
Robert L. Owens, Atul Malhotra, Danny J. Eckert, David P. White, Amy S. Jordan   +4 more
openalex   +3 more sources

A Correlation Between Quantitative Measurement Parameters of Thorax Computed Tomography and Pulmonary Function Test: A Retrospective Study

Namık Kemal Tıp Dergisi, 2021
Aim:Pulmonary functional and volumetric evaluation is routinely performed with pulmonary function test (PFT). However, volumetric evaluation is also possible in computed tomography (CT) imaging.
Hadi SASANI, Levent Cem MUTLU
doaj   +1 more source

Volumetry versus linear diameter lung nodule measurement: an ultra-low-dose computed tomography lung cancer screening study [PDF]

Digital Diagnostics, 2023
BACKGROUND: The DutchBelgian Randomized Lung Cancer Screening Trial (NELSON) used a volume-based protocol and significantly reduced the prevalence of false-positive results (2.1%).
Maria M. Suchilova, Ivan A. Blokhin, Olga O. Aleshina, Victor A. Gombolevskiy, Roman V. Reshetnikov, Viktor Yu. Bosin, Olga V. Omelyanskaya, Anton V. Vladzymyrskyy   +7 more
doaj   +1 more source

Comparison of Predicted Postoperative Lung Function in Pneumonectomy Using Computed Tomography and Lung Perfusion Scans

Journal of Chest Surgery, 2021
Background: Predicting postoperative lung function after pneumonectomy is essential. We retrospectively compared postoperative lung function to predicted postoperative lung function based on computed tomography (CT) volumetry and perfusion scintigraphy
Hee Joon Kang, Seok Soo Lee
doaj   +1 more source

Desaturation-Distance Ratio During Submaximal and Maximal Exercise Tests and Its Association With Lung Function Parameters in Patients With Lymphangioleiomyomatosis

Frontiers in Medicine, 2021
Background: The desaturation–distance ratio (DDR), the ratio of the desaturation area to the distance walked, is a promising, reliable, and simple physiologic tool for functional evaluation in subjects with interstitial lung diseases ...
Douglas Silva Queiroz, Douglas Silva Queiroz, Cibele Cristine Berto Marques da Silva, Alexandre Franco Amaral, Martina Rodrigues Oliveira, Henrique Takachi Moriya, Carlos Roberto Ribeiro Carvalho, Bruno Guedes Baldi, Celso R. F. Carvalho   +8 more
doaj   +1 more source

Changes in Cross-Sectional Area and Transverse Diameter of the Heart on Inspiratory and Expiratory Chest CT: Correlation with Changes in Lung Size and Influence on Cardiothoracic Ratio Measurement. [PDF]

PLoS ONE, 2015
The aim of this study was to investigate physiological changes in cardiac area and diameters between inspiratory and expiratory chest computed tomography (CT), and to assess their correlation with lung size change and influence on cardiothoracic ratio ...
Hayato Tomita, Tsuneo Yamashiro, Shin Matsuoka, Shoichiro Matsushita, Yasuyuki Kurihara, Yasuo Nakajima   +5 more
doaj   +1 more source

Air Trapping and the Risk of COPD Exacerbation: Analysis From Prospective KOCOSS Cohort

Frontiers in Medicine, 2022
Background and AimsAir trapping is a predictive index for a decline in lung function and mortality in patients with chronic obstructive pulmonary disease (COPD). However, the role of air trapping in COPD exacerbation has rarely been studied.
Youlim Kim, Sang Hyuk Kim, Sang Hyuk Kim, Chin Kook Rhee, Jae Seung Lee, Chang Youl Lee, Deog Kyeom Kim, Kyeong-Cheol Shin, Ki Suck Jung, Kwang Ha Yoo, Yong Bum Park   +10 more
doaj   +1 more source

Automatic algorithm for quantifying lung involvement in patients with chronic obstructive pulmonary disease, infection with SARS-CoV-2, paracoccidioidomycosis and no lung disease patients

PLoS ONE, 2021
In this work, we aimed to develop an automatic algorithm for the quantification of total volume and lung impairments in four different diseases. The quantification was completely automatic based upon high resolution computed tomography exams.
Allan Felipe Fattori Alves, José Ricardo Arruda Miranda, Fabiano Reis, Abner Alves Oliveira, Sérgio Augusto Santana Souza, Carlos Magno Castelo Branco Fortaleza, Suzana Erico Tanni, José Thiago Souza Castro, Diana Rodrigues Pina   +8 more
doaj   +2 more sources

Evaluation of Lung Volume and Effect of Vital Staining as Motivation to Quit Tobacco among Nicotine Dependents of Kanpur, India

Pesquisa Brasileira em Odontopediatria e Clínica Integrada, 2022
Objective: To quantify and compare respiratory functions and further screen the oral mucosa of tobacco and non-tobacco users. Material and Methods: First control group, non-tobacco users (n=55); Second group, smokers’ group (n=168) who currently smoked
Amit Kumar, Ramesh Nagarajappa, Gayathri Ramesh, Vishal Chandra, Ravish Ahuja, Anurag Azad   +5 more
doaj