Nonuniform Fourier‐decomposition MRI for ventilation‐ and perfusion‐weighted imaging of the lung
Sign Up to like & getrecommendations! Published in 2019 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.27803
Abstract: To improve the robustness of pulmonary ventilation‐ and perfusion‐weighted imaging with Fourier decomposition (FD) MRI in the presence of respiratory and cardiac frequency variations by replacing the standard fast Fourier transform with the more general… read more here.
Keywords: ventilation perfusion; decomposition mri; fourier decomposition; weighted imaging ... See more keywords
V/Q SPECT-Normal Values for Lobar Function and Comparison With CT Volumes.
Sign Up to like & getrecommendations! Published in 2019 at "Seminars in nuclear medicine"
DOI: 10.1053/j.semnuclmed.2018.10.008
Abstract: Ventilation and perfusion lung imaging with SPECT/CT permits accurate delineation of the individual lobes of the lungs using the CT images for use in ascribing the relative functional contribution to overall lung function of the… read more here.
Keywords: ventilation perfusion; lobar function; function; normal values ... See more keywords
A Brief History of Lung Ventilation and Perfusion Imaging Over the 50-Year Tenure of the Editors of Seminars in Nuclear Medicine.
Sign Up to like & getrecommendations! Published in 2020 at "Seminars in nuclear medicine"
DOI: 10.1053/j.semnuclmed.2019.07.004
Abstract: The ventilation/perfusion lung scan has been in continuous use for approximately half a century, the same lifetime as Seminars in Nuclear Medicine. Remarkably, the founding Editors-in-Chief have continued to guide the journal over this entire… read more here.
Keywords: ventilation perfusion; medicine; nuclear medicine; history lung ... See more keywords
Effects of Prone Position on Lung Recruitment and Ventilation-Perfusion Matching in Patients With COVID-19 Acute Respiratory Distress Syndrome: A Combined CT Scan/Electrical Impedance Tomography Study*
Sign Up to like & getrecommendations! Published in 2022 at "Critical Care Medicine"
DOI: 10.1097/ccm.0000000000005450
Abstract: OBJECTIVES: Prone positioning allows to improve oxygenation and decrease mortality rate in COVID-19–associated acute respiratory distress syndrome (C-ARDS). However, the mechanisms leading to these effects are not fully understood. The aim of this study is… read more here.
Keywords: ventilation perfusion; prone position; respiratory; position ... See more keywords
Lung aeration, ventilation, and perfusion imaging
Sign Up to like & getrecommendations! Published in 2022 at "Current Opinion in Critical Care"
DOI: 10.1097/mcc.0000000000000942
Abstract: Purpose of review Lung imaging is a cornerstone of the management of patients admitted to the intensive care unit (ICU), providing anatomical and functional information on the respiratory system function. The aim of this review… read more here.
Keywords: lung; ventilation perfusion; lung aeration;
Hepatopulmonary Syndrome Mimics Pulmonary Embolism on Pulmonary Ventilation/Perfusion SPECT/CT Study.
Sign Up to like & getrecommendations! Published in 2019 at "Clinical Nuclear Medicine"
DOI: 10.1097/rlu.0000000000002847
Abstract: A 64-year-old woman with a history of cirrhosis and progressive difficulty breathing underwent pulmonary ventilation/perfusion SPECT to evaluate possible pulmonary embolism. The images demonstrated multiple mismatched ventilation/perfusion defects in both lungs, suggesting pulmonary embolism. However,… read more here.
Keywords: ventilation perfusion; pulmonary ventilation; perfusion; pulmonary embolism ... See more keywords
Lung Ventilation-Perfusion Scan in COVID-19
Sign Up to like & getrecommendations! Published in 2023 at "Clinical Nuclear Medicine"
DOI: 10.1097/rlu.0000000000004545
Abstract: Abstract Although COVID-19 infection is associated with the increased risk of pulmonary thromboembolism (PTE), COVID-19 pulmonary lesions cause ventilation-perfusion (V/Q) patterns other than PTE. Although extensive research has been done to address different anatomical patterns… read more here.
Keywords: ventilation perfusion; covid; lung ventilation; perfusion scan ... See more keywords
Mismatched perfusion defects on routine ventilation‐perfusion scans after lung transplantation
Sign Up to like & getrecommendations! Published in 2022 at "Clinical Transplantation"
DOI: 10.1111/ctr.14650
Abstract: Incidental pulmonary embolism (PE) is a challenging entity with unclear treatment implications. Our program performs routine ventilation‐perfusion (VQ) scans at 3‐months post‐transplant to establish airway and vascular function. We sought to determine the prevalence and… read more here.
Keywords: mismatched perfusion; perfusion defects; routine ventilation; perfusion scans ... See more keywords
Gravity outweighs the contribution of structure to passive ventilation-perfusion matching in the supine adult human lung.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of applied physiology"
DOI: 10.1152/japplphysiol.00791.2016
Abstract: Gravity and matched airway/vascular tree geometries are both hypothesized to be key contributors to ventilation-perfusion (V̇/Q̇) matching in the lung, but their relative contributions are challenging to quantify experimentally. We used a structure-based model to… read more here.
Keywords: ventilation perfusion; geometry; perfusion matching; gravity ... See more keywords
Lobar Quantification by Ventilation/Perfusion SPECT/CT in Patients with Severe Emphysema Undergoing Lung Volume Reduction with Endobronchial Valves
Sign Up to like & getrecommendations! Published in 2019 at "Respiration"
DOI: 10.1159/000500407
Abstract: Background: Endoscopic lung volume reduction (ELVR) therapy using one-way valves is used to treat chronic obstructive pulmonary disease patients with severe heterogeneous emphysema. A successful treatment results in atelectasis of the treated pulmonary lobe with… read more here.
Keywords: lung volume; ventilation perfusion; volume;
Validation of RAH VQ SPECT/CT lobar quantification program using a modified version of GE Q lung.
Sign Up to like & getrecommendations! Published in 2023 at "Hellenic journal of nuclear medicine"
DOI: 10.1967/s002449912551
Abstract: OBJECTIVE The value of ventilation-perfusion (VQ) single photon emission tomography/computed tomography (SPECT/CT) lobar quantification for pre-operative assessment of lobectomy and lung volume reduction is known. Our in-house developed software, RAH ventilation perfusion SPECT/CT quantification (RAHVQSQ)… read more here.
Keywords: lung; program; ventilation perfusion; volume ... See more keywords