Quantitative mapping of specific ventilation in the human lung using proton magnetic resonance imaging and oxygen as a contrast agent

ET Geier, RJ Theilmann, C Darquenne… - JoVE (Journal of …, 2019 - jove.com
distribution, a measure of the specific ventilation heterogeneity, independent of tidal volume…
imaged in the supine posture. Note the vertical gradient in specific ventilation. A phantom of …

Ventilatory heterogeneity in the normal human lung is unchanged by controlled breathing

GK Prisk, GM Petersen, ET Geier… - Journal of Applied …, 2020 - journals.physiology.org
… of specific ventilation imaging (SVI) using oxygen-enhanced … the calculated LCI values we
report are for a supine subject … pulmonary function testing performed in the upright posture. …

Body Posture and Gravity as Determinants of Lung Perfusion and Ventilation

M Ax - 2019 - search.proquest.com
… flow and ventilation in supine and prone anesthetized and … , eg regional ventilation has been
measured both during normal … difference in vertical distribution of ventilation per alveolus is …

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
… In the supine posture, regional alveolar ventilation and local … alveolar ventilation calculated
from specific ventilation and … projective deformation based on a human-drawn lung boundary …

[HTML][HTML] Ventilation/perfusion relationships and gas exchange: measurement approaches

SR Hopkins - Comprehensive Physiology, 2020 - ncbi.nlm.nih.gov
… population under study (human, animal), and the specific research question. Table 1 …
measured by MIGET and become steeper with methacholine administration (251). The solid vertical

Measuring short-term changes in specific ventilation using dynamic specific ventilation imaging

ET Geier, GK Prisk, RC Sá - Journal of Applied Physiology, 2022 - journals.physiology.org
… implemented, oxygen-enhanced specific ventilation imaging (… Lines that overlap in time
(stacked vertically here) share … of coarse particles in the supine healthy human lung during tidal …

Ventilation heterogeneity in smokers: role of unequal lung expansion and peripheral lung structure

SAB Verbanck, M Polfliet… - Journal of Applied …, 2020 - journals.physiology.org
measured at the mouth in the same smokers supine, we … explored the specific link between
ventilation heterogeneity … acinar ventilation heterogeneity increase from upright to supine (…

[PDF][PDF] Ventilation/Perfusion Imaging of the Lungs with Oxygen Enhanced MRI

N Posner - 2020 - researchgate.net
… PAWP should be measured at the end of normal expiration before the next … ventilation/perfusion
(V/Q) scan. Since these images are highly focused, a trained eye can identify the specific

Assessing the pulmonary vascular responsiveness to oxygen with proton MRI

AS Kizhakke Puliyakote… - Journal of Applied …, 2024 - journals.physiology.org
… quantifiable ventilation), as well as voxels with specific ventilation ≥1 … -perfusion ratio is more
uniform in prone than supine 587 … to measure local water content, SVI = specific ventilation

Basics and Clinical Application of the MR Assessment of Ventilation

SB Fain, K Carey, GP Barton, RL Sorkness - … Functional Imaging: Basics …, 2021 - Springer
… , and oxygen-enhanced methods. This chapter also covers … shown measures of ventilation
such as the ventilation defect … to the subject in the supine position starting from FRC lung …