Clinical trials: Ultrasound Doppler
Cardio-pulmonary Bypass, AORTIC VALVE DISEASES
Clinical Validation of a Novel Handsfree Doppler Ultrasound Device, RescueDoppler, in Adult Cardiac Surgery Patients
The goal of this study is to evaluate a new device called RescueDoppler (RD), which measures continuous blood flow in the common carotid artery. The device is handsfree and operator- independent.
- Conditions
- Cardio-pulmonary Bypass, AORTIC VALVE DISEASES, Coronary Arterial Disease (CAD), Aortic Aneurysm of the Proximal Arch
- Trial name
- RD_CPB (NCT06637540)
- Testing
- RescueDoppler
- Where
- 3 sites in Norway
- Volunteers
- 42 people
- Sponsor
- St. Olavs Hospital
Infertility
Perifollicular Vascularity Assessment in in-Vitro Fertilization
On February 2004, a law (n. 40/2004) regulating assisted reproduction techniques (ARTs) was approved in Italy. This law aimed to regulate the treatment of infertility in Italy, contains several restrictions, such as the…
- Trial name
- NCT00458380
- Testing
- Controlled ovarian stimulation, perifollicular vascularity assessment, IVF, embryo transfer.
- Where
- Italy
- Volunteers
- 116 people
- Sponsor
- University Magna Graecia
Rheumatoid Arthritis (RA), Gouty Arthritis (GA)
Musculoskeletal Ultrasound for Differentiating Rheumatoid and Gouty Arthritis
Rheumatoid arthritis (RA) and gouty arthritis (GA) are two common forms of joint inflammation that can present with very similar physical symptoms, making them difficult to tell apart early in the disease process.
- Conditions
- Rheumatoid Arthritis (RA), Gouty Arthritis (GA), Gout, Inflammatory Arthritis
- Trial name
- NCT07657156
- Volunteers
- 100 people
- Sponsor
- Assiut University
Portal Hypertension
Doppler Ultrasound Hepatic Vein Waveform as a Non-invasive Tool in the Assessment of Severity of Portal Hypertension
Portal hypertension is the result of an increased hepatic vascular resistance and portal inflow. The best established method to assess portal pressures is the determination of wedged hepatic venous pressure gradient (HVPG).
- Trial name
- DPH (NCT02975323)
- Testing
- Carvedilol
- Where
- Pakistan
- Volunteers
- 50 people
- Sponsor
- Aga Khan University
Trancranial Doppler
Transcranial Ultrasound and Transcranial Doppler in Diagnosis and Detection of Outcome in Infants With Neurological Diseases
To evaluate the accuracy of transcranial ultrasound in detection of brain pathology in infants with neurological diseases and value of transcranial Doppler in evaluation of intracerebral blood flow in comparison with other…
- Trial name
- NCT06352931
- Testing
- transcranial and transcranial dopp;er
- Volunteers
- 50 people
- Sponsor
- Assiut University
Acute Heart Failure (AHF), Congestive Heart Failure Acute
POcus INTERvention for Tailoring Diuretic Strategy in Acute Decompensated Heart Failure
Acute decompensated heart failure (ADHF) is a frequent cause of hospitalization and is associated with high morbidity and mortality.
- Conditions
- Acute Heart Failure (AHF), Congestive Heart Failure Acute, Diuretic Effect, Lung Ultrasonography Score
- Trial name
- POINTER-HF (NCT07469722)
- Testing
- Furosemide 40 Milligrams., Hydrochlorothiazide (HCTZ) 25 milligrams., Acetazolamide 250 milligrams.
- Where
- Brazil
- Volunteers
- 128 people
- Sponsor
- Hospital de Clinicas de Porto Alegre
Post Induction Hypotension, Postoperative Morbidity
Preoperative Carotid Doppler Ultrasound Parameters for Prediction of Post-Induction Hypotension in Elective Non-Cardiac Surgery
This prospective observational study aims to evaluate the predictive value of preoperative carotid Doppler ultrasound parameters, including carotid velocity-time integral (carotid VTI) and corrected carotid flow time (ccFT), for…
- Trial name
- NCT07488182
- Where
- Turkey (Türkiye)
- Volunteers
- 110 people
- Sponsor
- Necmettin Erbakan University
Reversible Cerebrovascular Vasoconstriction Syndrome
Retinal Patterns in Reversible Cerebral Vasoconstriction Syndrome
Reversible cerebral vasoconstriction syndrome (RCVS) is a clinico radiological entity characterized by severe headaches (associated or not with neurological complications) during one to 3 weeks, associated with a characteristic…
- Trial name
- SVC-2R (NCT03204110)
- Where
- France
- Volunteers
- 23 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
First Trimester Bleeding, Pregnancy
Early Pregnancy Evaluation by Three-Dimensional Ultrasound
Early pregnancy is associated with numerous physiologic alterations - many of which are required to establish normal pregnancy outcome.
- Trial name
- NCT00342290
- Where
- 2 sites in United States
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Mechanical Circulatory Support
BRAIN-HEART Ultrasound Study Normative Values for Transcranial Doppler Based Cerebral Blood Flow Assessment
There is a dire need to establish normative values for transcranial Doppler(TCD) derived cerebral blood flow parameters for each type of Mechanical circulatory support (MCS) device and explore the relationship between the MCS…
- Trial name
- MCS (NCT05924503)
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- Wake Forest University Health Sciences
Systemic Sclerosis
Color Doppler Ultrasonography Evaluation of Abdominal and Peripheral Vasculopathy in Systemic Sclerosis Patients
In the current study we aim to assess the macrovascular involvement in SSc patients through an ultrasound (US) evaluation of radial and ulnar arteries and splanchnic vessels.
- Trial name
- NCT07012655
- Testing
- Colour Doppler Ultrasound
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Assiut University
Inherited Bleeding Disorders
Study to Evaluate the Use of Ultrasound in the Diagnosis of Hemophilic Joint Disease
The purpose of this study is to see whether power Doppler sonography (PDS) can be used to diagnose synovitis in patients with inherited bleeding disorders.
- Trial name
- NCT00212485
- Testing
- Power Doppler Sonography, MRI
- Where
- United States
- Volunteers
- 43 people
- Sponsor
- New York Presbyterian Hospital
Chronic Obstructive Pulmonary Disease
USCOM For Assessing Patients With COPD
Objective The Ultrasonic Cardiac Output Monitor (USCOM) is a non-invasive, quantitative method for measuring and monitoring cardiovascular haemodynamic parameters in patients. The aims of this study are: 1.
- Trial name
- NCT02329522
- Testing
- Ultrasonic Cardiac Output Monitor, Spirometry
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Chinese University of Hong Kong
Ultrasound
Reproducibility of Flow Measurements in the SMA Using Doppler Ultrasound
This will be a single center, methodological study in healthy male subjects to evaluate the intra-period, inter-period and inter-observer reproducibility of flow measurements in the superior mesenteric artery, using Doppler…
- Trial name
- NCT04419220
- Testing
- Doppler Ultrasound
- Where
- Belgium
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Extracorporeal Membrane Oxygenation Complication
Extracorporeal Membrane Oxygenation Evaluated by Transcranial Doppler.
To determine how venoarterial extracorporeal membrane oxygenation (ECMO) affects cerebral blood flow velocity (CBFV) measured by transcranial doppler (TCD), to determine whether specific changes in cerebral blood flow velocity…
- Trial name
- ECMO-DTC (NCT03457090)
- Testing
- Examination : a TCD and Trans-Thoracic Echocardiography
- Where
- France
- Volunteers
- 30 people
- Sponsor
- University Hospital, Toulouse
Acute Coronary Syndrome, Myocardial Infarction (MI)
Clinical Echocardiography and S' Wave for Early Recognition of Acute Coronary Syndrome in the Emergency Department, A Prospective Study
The goal of this prospective observational study is to assess the diagnostic accuracy of the tissue Doppler imaging (TDI) S' wave in detecting acute coronary syndrome (ACS) in adult patients presenting to the emergency department…
- Conditions
- Acute Coronary Syndrome, Myocardial Infarction (MI), Non-ST Elevation Myocardial Infarction, Unstable Angina
- Trial name
- CLEAR_ECHO (NCT06860997)
- Testing
- Tissue Doppler Imaging (TDI) S' Wave Echocardiography
- Where
- Belgium
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Cliniques universitaires Saint-Luc- Université Catholique de Louvain
Diabetic Nephropathies
Doppler Ultrasound in Early Detection of Diabetic Nephropathy Type 2 Diabetes Mellitus.
Doppler sonography provides an easily applicable, non-invasive, and well-established method for investigating renal morphologic characteristics and measuring vascular resistance in the renal parenchyma.
- Trial name
- NCT03284996
- Testing
- Doppler ultrasonography
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Assiut University
Traumatic Brain Injuries, Brain Injuries,Traumatic
Doppler Ultrasonography Parameters and Mortality in Traumatic Brain Injury
The purpose of this study is to find out whether blood flow measurements of the brain and neck arteries, obtained with bedside Doppler ultrasonography are associated with neurological outcome and survival in adult patients with…
- Trial name
- NCT07890259
- Testing
- Transcranial and Carotid Doppler Ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 110 people
- Sponsor
- Inonu University
Acute Kidney Injury, Acute Kidney Failure Stage 3
The Performance of Renal Doppler Ultrasound in Predicting Outcome of Dialysis Weaning
Acute kidney injury (AKI) is a frequent problem in the intensive care unit (ICU) affecting more than 50 % of patients. AKI is associated with several adverse outcomes, including increased mortality and increased length of ICU…
- Trial name
- NCT04622384
- Testing
- Dialysis weaning
- Where
- Denmark
- Volunteers
- 33 people
- Sponsor
- Johan Fridolf Hermansen
Alcohol Dependence
Cerebral Hemodynamics With rTMS in Alcohol Dependence
The present study measures the cerebral hemodynamic indices of alcohol dependent patients and observe the relative changes in these parameters with rTMS application.
- Trial name
- NCT02446067
- Testing
- Repetitive Transcranial Magnetic Stimulation (rTMS)
- Where
- India
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Central Institute of Psychiatry, Ranchi, India