Clinical trials: Perfusion Imaging
Undetermined Ovarian Mass
Characterization of Ovarian Masses Unable to Classify With Gynecological Ultrasonography: Value of Pelvic MRI With Perfusion- and Diffusion-weighted Imaging
The aim of the study is to prospectively evaluate the value of pelvic MRI including diffusion- and perfusion-weighted sequences in the selected group of patients that have an undetermined ovarian mass at ultrasound.
- Trial name
- IOTAMRI (NCT02425540)
- Testing
- Pelvic MRI
- Where
- Belgium
- Volunteers
- 74 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Cerebral Arteriopathy
Measurement of Brain Perfusion by a MR Perfusion Imaging Called eASL in Children's Cerebral Arteriopathies.
The MR sequence called MR-ASL is used to measure cerebral perfusion in children. This ASL sequence is used with a unique post-labeling delay (PLD) due to the technical impossibility of setting different post-labeling delays.
- Trial name
- PEACE (NCT05026060)
- Testing
- Imaging
- Where
- France
- Volunteers
- 50 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Status Epilepticus, Ictal-interictal Continuum
The Role of Imaging in the Diagnosis, Management and Prognosis of Possible Non-convulsive Status Epilepticus
The investigators propose a prospective study of 20 control subjects and 180 consecutive patients with possible non-convulsive status epilepticus (NCSE). The investigators will obtain three functional images of the brain: 1.
- Conditions
- Status Epilepticus, Ictal-interictal Continuum, Positron-emission Tomography, Perfusion Weighted MRI
- Trial name
- NCT06017973
- Testing
- MRI scan including arterial spin labelling of the brain, CT perfusion scan of the brain, FDG-PET scan of the brain
- Where
- Belgium
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Multiple Sclerosis
The Effect of Sildenafil Citrate (Viagra® (Registered Trademark)) on Brain Blood Flow in Multiple Sclerosis Patients
This study will determine whether sildenafil citrate, commonly known as Viagra, can cause increased blood flow to the brain in a wide range of multiple sclerosis (MS) patients, including women.
- Trial name
- NCT00094068
- Where
- United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Multiple Sclerosis
MR Perfusion Imaging and Hypercapnia (Increased Carbon Dioxide) to Study New Blood Vessel Formation in Multiple Sclerosis
This study will use magnetic resonance imaging (MRI) to examine and compare changes in blood flow and blood volume in the brains of normal volunteers and patients with multiple sclerosis (MS).
- Trial name
- NCT00064909
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- National Institutes of Health Clinical Center (CC)
Pituitary Adenoma
Pre-operative Surgical Difficulty Stratification Using Predicted Tumor Perfusion and Consistency
Pituitary adenomas (PAs) are among the most prevalent lesions of the sella turcica, accounting for 10%-25% of all intracranial neoplasms. Pituitary macroadenomas (PMAs) are defined with a maximum diameter of over 1 cm.
- Trial name
- NCT06664190
- Testing
- Advanced sequences, such as arterial spin labeling (ASL) and diffusion-weighted imaging (DWI)
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Huashan Hospital
COPD
Assessment of Lung Perfusion in Patients With Chronic Obstructive Pulmonary Disease Using FD MRI
In the recent years a novel method for functional lung imaging called Fourier decomposition MRI (FD MRI) has been introduced that allows for simultaneous assessment of regional lung perfusion and ventilation-related information…
- Trial name
- FD-COPD (NCT02367209)
- Where
- Switzerland
- Volunteers
- 14 people
- Sponsor
- University Hospital, Basel, Switzerland
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
Asthma
Magnetic Resonance (MR) in Asthmatic Patients
Asthma is a disease of small airways. Affected areas have reduced lung ventilation causing reflex vasoconstriction. MR perfusion imaging of the lungs is a sensitive method of imaging zonal lung perfusion.
- Trial name
- NCT00188487
- Testing
- magnetic resonance imaging (MRI) of the thorax
- Where
- Canada
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University Health Network, Toronto
Myocardial Ischemia
The Comparison of the Necessity of Repeat Myocardial Perfusion SPECT Studies Between Tc-99m Tetro and Tc-99m Mibi
Research Questions: 1. Is there a significant difference between the causal repeat rate of myocardial perfusion studies for Tc99m tetrofosmin and Tc99m sestamibi? 2.
- Trial name
- NCT01047150
- Where
- United States
- Volunteers
- 250 people
- Sponsor
- Cardiac Imaging of Augusta
Kawasaki Disease, Heart Disease
Real Time Myocardial Contrast Echocardiography and Dobutamine Stress Perfusion Magnetic Resonance Imaging
The present study is designed to: 1. investigate the safety and efficacy of Real time myocardial echocardiography (RT-MCE) in adolescents and adults ages 12-50 with congenital and acquired congenital heart disease 2.
- Trial name
- ECHOBIKE (NCT00861848)
- Where
- United States
- Volunteers
- 124 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Retinal Artery Occlusions, Polypoidal Choroidal Vasculopathy
OCT in Rare Chorioretinal Diseases
This study will evaluate the total blood flow in the retina and choroid (structures in the back of the eye) by Doppler optical coherence tomography (OCT) and OCT angiography. Angiography is mapping of the blood vessels.
- Conditions
- Retinal Artery Occlusions, Polypoidal Choroidal Vasculopathy, Retinal Arterial Macroaneurysm, Juxtafoveal Telangiecasia
- Trial name
- NCT02141308
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- Oregon Health and Science University
Coronary Artery Disease
Combined Supine/Prone Acquisitions in Stress-First/Stress-Only Myocardial Perfusion Imaging to Reduce Equivocal Results
Participants are being asked to participate in this research study because the participant's doctor has ordered a myocardial perfusion SPECT (Single-Photon Emission Computed Tomography) scan to look at the blood flow in the…
- Trial name
- SFSO-MPI (NCT02576886)
- Testing
- Gamma Camera, Prone Imaging
- Where
- Canada
- Volunteers
- 490 people, healthy volunteers welcome
- Sponsor
- Hamilton Health Sciences Corporation
Sarcoma
Advanced MR Imaging in Sarcoma Patients
We intend to investigate the clinical application of two emerging imaging modalities for which the technical capability is currently in place at Mayo Clinic.
- Trial name
- NCT02705391
- Where
- United States
- Volunteers
- 49 people
- Sponsor
- Mayo Clinic
Congenital Heart Disease
Evaluation of the Microcirculation During the Corrective Surgery of Congenital Heart Defects in Children
General objective of the research project: To evaluate the alterations of systemic microvascular reactivity during cardiopulmonary bypass (CPB), in children submitted to cardiac surgery for repair of congenital heart defects.
- Trial name
- NCT03144258
- Where
- Brazil
- Volunteers
- 100 people
- Sponsor
- National Institute of Cardiology, Laranjeiras, Brazil
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)
Healthy, Hypercapnia
Study of Brain Blood Flow During Induced Hypercapnia (Excess Blood Carbon Dioxide)
This study will evaluate magnetic resonance imaging (MRI ) methods for measuring changes in the brain's blood flow during hypercapnia (a condition of excess carbon dioxide in the blood).
- Trial name
- NCT00001845
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Childhood Thyroid Gland Carcinoma, Thyroid Diseases
Fluorescence Imaging of the Parathyroid Glands of Children
The aim of this study is to develop a standardized and user-independent imaging workflow model for autofluorescence and quantified fluorescence angiography with Indocyanine Green (ICG) of the parathyroid glands of children.
- Trial name
- FLUOPATCH (NCT05917067)
- Testing
- Fluorescence imaging of the parathyroid glands of children
- Where
- 3 sites in Netherlands
- Volunteers
- 23 people
- Sponsor
- Amsterdam University Medical Centers (UMC), Location Academic Medical Center (AMC)
Kidney Transplantation
Intraperative Assessment of Renal Perfusion Using Infrared Imaging
Current assessment of organ tissue viability by surgeons in the operating room is limited to crude estimates such as overt physical examination, measurement of laboratory values and physical measurements of vascular flow and…
- Trial name
- NCT00595179
- Where
- United States
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
To Assess the Feasibility, Visualization Capability, and Optimal Dosing of ICG Fluorescence Imaging for Intraoperative Assessment of Knee Tissue Perfusion
ICG Fluorescence in Knee Arthroscopy Study
The purpose of this study is to first evaluate whether ICG fluorescence angiography can be used to evaluate blood flow of the anterior cruciate ligament (ACL), tendons, and knee structures during an arthroscopic surgery.
- Trial name
- NCT07793266
- Testing
- Intravenous administration of indocyanine green (SPY Agent Green) 2 mL of SPY Agent Green (5.0 mg dose), Intravenous administration of indocyanine green (SPY Agent Green) 3 mL of SPY Agent Green (7.5 mg dose), Intravenous administration of indocyanine green (SPY Agent Green) 4 mL of SPY Agent Green (10 mg dose)
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Henry Ford Health System