Clinical trials: Perfusion Imaging
Renal Cell Carcinoma
Non-Contrast Perfusion Using Arterial Spin Labeled MR Imaging for Assessment of Therapy Response in Metastatic Renal Cell Carcinoma
Magnetic Resonance Imaging (MRI) including Arterial Spin Labeling (ASL) will be performed before, during, and after the treatment, in a total of up to 6 MRI sessions until 7 months after the first session, or when progression is…
- Trial name
- NCT04831138
- Testing
- MRI with ASL, ASL-MRI
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Increased Right Ventricular Radiotracer Uptake
Stress Induced Right Ventricular Uptake on Lexiscan Stress MPI
The objectives of this study are to determine the: 1. Diagnostic value of stress induced RV changes on Lexiscan stress MPI as compared to Exercise stress MPI in predicting a significant CAD. 2.
- Trial name
- RVuptakeLexi (NCT01697995)
- Where
- United States
- Volunteers
- 650 people, healthy volunteers welcome
- Sponsor
- Aiden Abidov
Coronary Artery Disease
A Phase I Study of a Novel Tracer for Positron Emission Tomography "PET" Myocardial Perfusion Imaging "MPI"
[11C]-dimethyl-diphenyl ammonium ([11C]-DMDPA) - A Phase I, Open-label, Safety and Tolerability, Radiation Dosimetry, Biodistribution, First-in-Human Study of a Novel 11C-labeled Tracer for Positron Emission Tomography Myocardial…
- Trial name
- NCT02720354
- Testing
- [11C]-DMDPA
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Synektik S.A.
Surgical Anastomosis
Intraoperative Hyperspectral Imaging in Gastrointestinal Anastomoses
In this study, gastrointestinal anastomoses are examined with a hyperspectral camera.
- Trial name
- HSIGI (NCT03667950)
- Testing
- Hyperspectral Imaging
- Where
- Germany
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Leipzig
Diabetes Mellitus
The Aim is to Estimate the Total Amount of Insulin-producing Cells in the Pancreas by MRI.
Assess pancreatic beta cell function using MR imaging.
- Trial name
- NCT00280085
- Testing
- MR imaging, Glucose clamp, Arginine
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Pfizer
Chronic Pancreatitis
Non-invasive MRI to Quantify the Effect of Secretin on Pancreatic Blood Flow and Perfusion in Healthy Volunteers
Alterations in pancreatic blood have been implicated in pancreatic inflammation and pain. Several modalities have been used to assess pancreatic blood flow although some of these methods are invasive, use ionising radiation or…
- Trial name
- NCT01452217
- Testing
- Secretin
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Peripheral Artery Disease, Diabetes Mellitus
Radiotracer-Based Perfusion Imaging of Patients With Peripheral Arterial Disease
The aim of this clinical study is to 1) establish a healthy database for nuclear perfusion imaging of the lower extremities and 2) assess the prognostic value of radiotracer-based perfusion imaging for predicting clinical…
- Conditions
- Peripheral Artery Disease, Diabetes Mellitus, Chronic Limb-Threatening Ischemia
- Trial name
- NCT03622359
- Testing
- SPECT/CT perfusion imaging, PET/CT perfusion imaging
- Where
- United States
- Volunteers
- 192 people, healthy volunteers welcome
- Sponsor
- Nationwide Children's Hospital
Heart Failure, Diastolic, Diastolic Heart Failure
Myocardial Perfusion, Oxidative Metabolism, and Fibrosis in HFpEF
Unlike heart failure with reduced ejection fraction (HFrEF) where several medicines and devices have been demonstrated to reduce mortality, no such therapies have been identified in HFpEF.
- Conditions
- Heart Failure, Diastolic, Diastolic Heart Failure, Hypertension
- Trial name
- HFpEF-PRoF (NCT02589977)
- Testing
- regadenoson
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Marvin W. Kronenberg, M.D.
Stroke, Epilepsy
Coronary and Cerebral Microvascular Dysfunction in Neurological Diseases
Neurological and cardiovascular diseases are increasing in relative and absolute terms globally, and pose a major burden in terms of morbidity, mortality, quality of life and healthcare costs.
- Conditions
- Stroke, Epilepsy, Transient Global Amnesia (TGA)
- Trial name
- G-HeBra (NCT07009990)
- Where
- Germany
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Medicine Greifswald
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
Chest Pain, Sickle Cell Anemia
Effects of Nitric Oxide and Nitroglycerin in Patients With Sickle Cell Anemia
Sickle cell anemia is the most common genetic disease affecting African-Americans. About 1 in every 1000 African-Americans has the disease and 1 in every 12 carry the genes that could be passed on to their children.
- Trial name
- NCT00001716
- Testing
- Nitric Oxide, Nitroglycerin
- Where
- United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Diagnostic Imaging, Peripheral Arterial Disease
Calf Muscle Perfusion in Patients With Intermittent Claudication by 3D-reconstruction of MSOT (MSOT_IC_3D)
The aim of the proposed study is to define independent parameters for the diagnostic assessment of the perfusion situation of the calf muscle based on 3D-reconstruction of multispectral optoacoustic tomography (MSOT) in a…
- Conditions
- Diagnostic Imaging, Peripheral Arterial Disease, Intermittent Claudication
- Trial name
- NCT05773534
- Testing
- MSOT
- Where
- Germany
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Ulrich Rother
Myocardial Perfusion Imaging, Magnetic Resonance Imaging
Dotarem Evaluation for Myocardial Perfusion CMR
The overall goal of this study is to investigate the signal intensity and relaxation rate characteristics of gadoterate meglumine (Dotarem, Guerbet, USA) enhanced myocardium during rest and stress perfusion cardiovascular…
- Trial name
- NCT03937921
- Testing
- Gadavist 15Ml Solution for Injection
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Type1diabetes, Insulitis
Pancreas Ultrasound Imaging in type1 Diabetes
The overall goal of this study is to develop and test a novel method involving ultrasound imaging, in order to detect the development of type 1 diabetes.
- Conditions
- Type1diabetes, Insulitis, Pancreas Inflamed
- Trial name
- NCT05482321
- Testing
- Definity Suspension for Injection
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
The GLP-1-mediated Gut-kidney Axis
Acute Effects of GLP-1 on Renal Hemodynamics
This study investigates the hypothesis, that GLP-1's suppression of ANG II and natriuretic action increase medullary perfusion and decrease oxygen consumption, leading to higher tissue oxygenation.
- Trial name
- GLP1RRBF (NCT04337268)
- Testing
- Glucagon-Like Peptide 1, saline 0.9%
- Where
- Denmark
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
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
Healthy, Hypercapnia
Role of Prostaglandins in the Regulation of Brain Blood Flow
This study will use magnetic resonance imaging (MRI) to examine the role of prostaglandins-a type of fatty acid with hormone-like actions-in the regulation of brain blood flow.
- Trial name
- NCT00006318
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
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
MRI Scans
Comparison of Quantitative MRI Perfusion Methods With Quantitative PET Perfusion Imaging
This work seeks to develop, evaluate and use new MRI methods for non-invasive quantitative assessment of myocardial perfusion and perfusion reserve (MPR), and to compare with quantitative PET imaging.
- Trial name
- NCT02608944
- Testing
- Adenosine, Regadenoson, O-15 labeled radioactive water
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Utah
Caffeine
Effects of a Cocoa Shot on the Human Brain 2
The Hershey Company is interested in investigating the effects of various chocolate beverages on brain physiology and cognitive function.
- Trial name
- NCT02080845
- Testing
- no caffeine, high caffeine, no theobromine
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences