Clinical trials: Lung Perfusion
Covid-19, Asthma
COVID-19 Related Lung Ventilation and Perfusion Injury
Little is currently known about the immediate and long-term effect of COVID-19 on lung ventilation (delivery of air to the lungs) and lung perfusion (delivery of blood to the lungs).
- Conditions
- Covid-19, Asthma, Healthy
- Trial name
- NCT04549636
- Testing
- V/Q SPECT-CT, St. George's Respiratory Questionnaire (SGRQ), mMRC (Modified Medical Research Council) Dyspnea Scale
- Where
- Canada
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- McMaster University
Emphysema
Hypoxic Pulmonary Vasoconstriction Pilot Study
The purpose of this study is to determine if the events leading to smoking-associated centrilobular and paraseptal emphysema are caused by a failure of the lungs' inherent mechanisms to block hypoxic pulmonary vasoconstriction…
- Trial name
- NCT03733470
- Testing
- Sildenafil study group
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Eric A. Hoffman
Lung Perfusion, Respiratory Physiology
Effects of Inspiratory vs Expiratory Breath-Hold on Lung Perfusion Measured by EIT Saline Indicator Method: A Self-Controlled Study
This study aims to compare lung perfusion distribution between inspiratory breath-hold and expiratory breath-hold phases using the saline indicator method combined with electrical impedance tomography (EIT).
- Conditions
- Lung Perfusion, Respiratory Physiology, Electrical Impedance Tomography, Ventilation-Perfusion Mismatch
- Trial name
- NCT07303972
- Testing
- Electrical Impedance Tomography Saline Indicator Procedure, Electrical Impedance Tomography Device
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Shanghai Zhongshan Hospital
Pulmonary Ventilation, Pulmonary Perfusion
The Study of Regional Lung Ventilation-perfusion by EIT
This is a prospective observational trial. The purpose of this study is to explore the feasibility of EIT monitoring pulmonary blood flow and the consistency and difference between EIT monitoring pulmonary local ventilation blood…
- Trial name
- NCT05105932
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Peking Union Medical College Hospital
Atelectasis
Effect of Hyperoxia and Hypergravity on Lung Ventilation and Perfusion
The primary aim of this project is to get further knowledge on the effects of + Gz accelerations and hyperoxia on lung ventilation in humans.
- Trial name
- NCT01993394
- Testing
- hypergravity, gas mixture
- Where
- 2 sites in France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Direction Centrale du Service de Santé des Armées
Cystic Fibrosis
Non-contrast Lung Perfusion Mapping Applied for New Insights in Cystic Fibrosis
Cystic fibrosis (CF) results in the thickening of mucus in the lungs and other organs due to dysfunction of a transmembrane conductance protein.
- Trial name
- NCT04467957
- Testing
- Initiation of CFTR Modulator, Hyperpolarized Xenon 129
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Patent Ductus Arteriosus, Persistent Pulmonary Hypertension of the Newborn
Plethismographic Perfusion Index in Neonates
Photoplethismography will be measured and compared in newborns suffering from patent ductus arteriosus and normal controls.
- Trial name
- NCT02380040
- Testing
- PPG
- Where
- Israel
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Shaare Zedek Medical Center
Lung Disease
Effect of Smoking on Ventilation-Perfusion Ratio
Smoking is one of the world's leading health hazards. Besides being a major risk factor in the etiology of COPD and lung cancer, cigarette smoke is also a causative agent lung diseases characterized by bronchiolar and…
- Trial name
- NCT02963467
- Testing
- cigarette, "dummy cigarette"
- Where
- Austria
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Pulmonary Arterial Hypertension
Evaluation of Pulmonary Perfusion Heterogeneity and Compliance in Patients With Pulmonary Hypertension Using Positron Emission Tomography Imaging
The purpose of the study is to find out how the blood flow changes in the lungs of people with pulmonary hypertension compared to healthy individuals without pulmonary hypertension.
- Trial name
- NCT01461343
- Testing
- CT imaging, functional PET imaging
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Acute Respiratory Distress Syndrome
Effect of APRV and LTV on Lung Ventilation and Perfusion in Patients With Moderate-to-severe ARDS
Low tidal volume ventilation (LTV) has been proposed and widely used in patients with acute respiratory distress syndrome (ARDS) to prevent ventilator-induced lung injury (VILI) and mitigate its effects.
- Trial name
- NCT05767125
- Testing
- APRV, LTV
- Where
- China
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Lung Neoplasms, Esophageal Lesion
Near-Infrared Perfusion During Minimally Invasive Thoracic Surgery Download
This will be a prospective, (NSR), single-center feasibility study of the Olympus VE2 NIR Imaging System to assess perfusion using NIR during minimally invasive esophagectomy and pulmonary segmentectomy.
- Trial name
- NCT05346380
- Testing
- Olympus VE2 NIR Imaging System, Indocyanine green
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Ex-Vivo Lung Transplantation
The University of Alberta Negative Pressure Ventilation Ex-Vivo Lung Perfusion (NPV-EVLP) Trial
This project is focused on helping one of the most vulnerable patient populations in medicine, patients with end-stage chronic lung disease.
- Trial name
- UA NPV-EVLP (NCT03293043)
- Testing
- NPV-EVLP
- Where
- Canada
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Alberta
COPD, Cognitive Impairment
Cerebral and Cardiac Blood Flow During Exercise in Patients With COPD
Heart disease and conditions related to the blood vessels are responsible for a large proportion (over a quarter) of the deaths in people with chronic obstructive pulmonary disease (COPD).
- Trial name
- REFLEX-COPD (NCT04138563)
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
COPD, Healthy Subjects
Sublingual Tonometry to Assess Tissue Perfusion in Patients With Chronic Obstructive Pulmonary Disease (COPD)
Sublingual positioning of a silicon capillary system is applied. After 15 min, while the individual is in resting position with closed mouth and normal tidal breathing through the nose is performed, the silicon capillary system…
- Trial name
- subton (NCT01169506)
- Testing
- sublingual silicon capillary
- Where
- Hungary
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Szeged University
Lung Disease
Regional Lung Imaging Using Hyperpolarized Xenon Gas
The investigators aim to use hyperpolarized xenon gas magnetic resonance imaging (MRI) and computed tomography to develop a new technique capable of objectively and quantitatively describing regional and structural lung…
- Trial name
- NCT02112929
- Testing
- Hyperpolarized xenon
- Where
- United Kingdom
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Oxford University Hospitals NHS Trust
Cystic Fibrosis
Hyperpolarized Xenon Imaging in Patients With Cystic Fibrosis
Chronic lung diseases show a gradual onset of irreversible lung damage which can lead to severe breathing problems and/or respiratory failure.
- Trial name
- NCT02912637
- Testing
- Hyperpolarized Xenon MRI
- Where
- United Kingdom
- Volunteers
- healthy volunteers welcome
- Sponsor
- Papworth Hospital NHS Foundation Trust
Genetic Predisposition to Disease, Healthy Volunteers
This Study Consists of Two Study Parts Conducted Under a Single IRB. Part I: Short Term ApoE-dependent Cerebral Blood Flow Response to Sirolimus in Cognitively Normal Adults Part II: Short Term ApoE-dependent Cerebral Blood Flow and Lung Perfusion Response to Sirolimus in Cognitively Normal Adults
This study consists of two study parts (Part I and Part II) conducted under a single IRB approval. Individuals that participated in Part I of the study were invited to participate in Part II of the study.
- Trial name
- NCT05386914
- Testing
- Sirolimus
- Where
- United States
- Volunteers
- 205 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Using Functional Lung MRI to Explore Pulmonary Perfusion Changes in Patients With Pulmonary Fibrosis and Emphysema Syndrome
Magnetic Resonance Lung Function Imaging Study of Pulmonary Fibrosis Combined With Emphysema Syndrome
This study intends to use magnetic resonance pulmonary function imaging technology to explore imaging markers for early diagnosis of patients with CPFE.
- Trial name
- NCT06431555
- Testing
- MRI
- Where
- China
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Beijing Chao Yang Hospital
Obesity (Disorder), Ventilation Homogeneity
Positional Effects on Lung Ventilation and Perfusion in Obesity
Electrical Impedance Tomography (EIT) is a non-invasive, bedside monitoring tool that provides real-time information on regional ventilation and perfusion.
- Conditions
- Obesity (Disorder), Ventilation Homogeneity, Perfusion, Ventilation Perfusion Mismatch
- Trial name
- NCT07341113
- Testing
- Standardized body positioning
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Koç University
Sepsis
Immune Activation, Hypoxia and Vasoreaction in Sepsis of Pulmonary Versus Abdominal Origin
Sepsis remains a common entity in critical care patients with remarkable mortality. Pulmonary and abdominal infections (with subsequent sepsis) are the most common in the ICU.
- Trial name
- NCT01530932
- Where
- Germany
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Universitätsmedizin Mannheim