Heavy upright exercise increases ventilation-perfusion mismatch in the basal lung: indirect evidence for interstitial pulmonary edema

V Tedjasaputra, RC Sá, KM Anderson… - Journal of Applied …, 2019 - journals.physiology.org
Ventilation-perfusion (V̇a/Q̇) mismatch during exercise may result from interstitial
pulmonary edema if increased pulmonary vascular pressure causes fluid efflux into the …

Magnetic resonance imaging of aerosol deposition

RB Thompson, C Darquenne - Journal of Aerosol Medicine and …, 2023 - liebertpub.com
Nuclear magnetic resonance imaging (MRI) uses non-ionizing radiation and offers a host of
contrast mechanisms with the potential to quantify aerosol deposition. This chapter …

Non-contrast quantitative pulmonary perfusion using flow alternating inversion recovery at 3 T: A preliminary study

JS Greer, CD Maroules, OK Oz, S Abbara… - Magnetic resonance …, 2018 - Elsevier
Purpose To demonstrate the initial feasibility of non-contrast quantitative pulmonary
perfusion imaging at 3 T using flow alternating inversion recovery (FAIR), and to evaluate …

Prone positioning redistributes gravitational stress in the lung in normal conditions and in simulations of oedema

AS Kizhakke Puliyakote, S Holverda… - Experimental …, 2022 - Wiley Online Library
New Findings What is the central question of this study? How does the interaction between
posture and gravity affect the stresses on the lung, particularly in highly inflated …

Lung volume does not alter the distribution of pulmonary perfusion in dependent lung in supine humans

SR Hopkins, TJ Arai, AC Henderson… - The Journal of …, 2010 - Wiley Online Library
There is a gravitational influence on pulmonary perfusion, including in the most dependent
lung, where perfusion is reduced, termed Zone 4. Studies using xenon‐133 show Zone 4 …

[HTML][HTML] Ultrashort echo time MRI of pulmonary water content: assessment in a sponge phantom at 1.5 and 3.0 Tesla

F Molinari, AJ Madhuranthakam… - Diagnostic and …, 2014 - ncbi.nlm.nih.gov
PURPOSE We aimed to develop a predictive model for lung water content using ultrashort
echo time (UTE) magnetic resonance imaging (MRI) and a sponge phantom. MATERIALS …

Gaussian signal relaxation around spin echoes: Implications for precise reversible transverse relaxation quantification of pulmonary tissue at 1.5 and 3 Tesla

J Zapp, S Domsch, S Weingärtner… - Magnetic Resonance in …, 2017 - Wiley Online Library
Purpose To characterize the reversible transverse relaxation in pulmonary tissue and to
study the benefit of a quadratic exponential (Gaussian) model over the commonly used …

Imaging for lung physiology: what do we wish we could measure?

HT Robertson, RB Buxton - Journal of applied physiology, 2012 - journals.physiology.org
The role of imaging as a tool for investigating lung physiology is growing at an accelerating
pace. Looking forward, we wished to identify unresolved issues in lung physiology that might …

Multiparametric oxygen-enhanced functional lung imaging in 3D

KRF Hemberger, PM Jakob, FA Breuer - Magnetic Resonance Materials in …, 2015 - Springer
Objective To develope a self-gated free-breathing 3D sequence allowing for simultaneous T
1-weighted imaging and quantitative T_ 2^* T 2∗ mapping in different breathing phases in …

Characterization of and tissue density in the human lung: Application to neonatal imaging in the intensive care unit

AD Hahn, A Malkus, J Kammerman… - Magnetic resonance …, 2020 - Wiley Online Library
Purpose Novel demonstration of and tissue density estimation in infant lungs using 3D
ultrashort echo time MRI. Differences between adult and neonates with no clinical indication …