Clinical trials: Ultrasound Doppler
Aortic Stenosis
Microembolic Signals and Serum Markers of Neuronal Damage During Transcatheter Aortic Valve Implantation.
Transcatheter Aortic Valve Implantation (TAVI) using femoral access is an option for definitive treatment of aortic stenosis when open-heart surgery is considered inappropriate.
- Trial name
- NCT01237743
- Testing
- Transcatheter aortic valve implantation.
- Where
- Sweden
- Volunteers
- 21 people
- Sponsor
- Sahlgrenska University Hospital
Congenital Heart Defects
Use of Color Doppler in Routine Examination of Fetal Heart in Second Trimester
To evaluate the percentage of severe heart defect diagnosed with the use of color Doppler at a routine fetal scan in the second trimester of pregnancy
- Trial name
- NCT01201486
- Where
- Norway
- Volunteers
- 6,781 people
- Sponsor
- Helse Stavanger HF
Cardiopulmonary Arrest
Measurement of Cerebral Flow Using Transfontanellar Doppler in Infants Under Cardiopulmonary Bypass
Transfontanellar Doppler can measure the velocity at both the carotid artery and the anterior cerebral artery during cardiopulmonary bypass in congenital heart disease patients.
- Trial name
- NCT01996020
- Where
- South Korea
- Volunteers
- 43 people
- Sponsor
- Seoul National University Hospital
Sickle Cell Disease, Stroke
Primary Prevention of Stroke in Children With Sickle Cell Anaemia in Nigeria in the Community
The overall goal of this feasibility study is to establish a standard of care stroke prevention program for children with sickle cell anemia in a community hospital by task shifting stroke detection and transcranial Doppler…
- Trial name
- SPRING-COM (NCT05434000)
- Testing
- Hydroxyurea
- Where
- Nigeria
- Volunteers
- 217 people
- Sponsor
- Barau Dikko Teaching Hospital
Infertility
Physiotherapy Treatment for Uterine Blood Flow Improved Dimensional Ultrasound Evaluated With Angiography
Ivanovski shows that by studying the vascular impedance can calculate the optimal uterine receptivity in IVF. A reduced vascular resistance and increased blood flow rate improves the chance of pregnancy. Dr. Luis T.
- Trial name
- NCT02437435
- Testing
- Reproductive Technique Gimilio
- Where
- Spain
- Volunteers
- 54 people
- Sponsor
- University of Valencia
Rotator Cuff Tear or Rupture, Not Specified as Traumatic
Bursa Augmentation in Arthroscopic Rotator Cuff Repair
The aim of this first study is to investigate in a case series through sequential sonographic imaging, using Doppler ultrasonography, the postoperative morphology, especially vascularity and findings of neovascularity, after…
- Trial name
- ARCR-Bursa (NCT03986749)
- Testing
- Doppler ultrasonography after bursa augmentation
- Where
- Switzerland
- Volunteers
- 30 people
- Sponsor
- Schulthess Klinik
Sickle Cell Disease
Study to Evaluate the Effect of GBT440 on TCD in Pediatrics With Sickle Cell Disease
This study is a Phase 3, randomized, double-blind, placebo-controlled study of voxelotor in pediatric participants, aged ≥ 2 to < 15 years old, with Sickle Cell Disease.
- Trial name
- HOPE Kids 2 (NCT04218084)
- Testing
- Voxelotor
- Where
- 35 sites in United States, Egypt and 7 more
- Volunteers
- 236 people
- Sponsor
- Pfizer
Dacryocystitis; Chronic, Lacrimal Sac Space-occupying Lesions
Color Doppler Ultrasound in Lacrimal Sac Space-occupying Lesions
Dacryocystitis and nasolacrimal duct obstruction are the main common causes of epiphora. Dacryocystorhinostomy (DCR) is a widely used and effective treatment for dacryocystitis and nasolacrimal duct obstruction.
- Conditions
- Dacryocystitis; Chronic, Lacrimal Sac Space-occupying Lesions, Color Doppler Ultrasound, Computed Tomography
- Trial name
- NCT05500950
- Testing
- CDU and CT-DCG or CT examination
- Where
- China
- Volunteers
- 21 people
- Sponsor
- Wenzhou Medical University
Cardiac Output
Validation of CardioQ Versus PiCCO in Children
To compare the less invasive Oesophageal Doppler cardiac output Monitor (ODM) to the invasive (standard of care) Transpulmonary Thermodilution cardiac output monitor (TPTD) in children.
- Trial name
- CQPiCCO (NCT03172689)
- Testing
- CardioQ
- Where
- Netherlands
- Volunteers
- 11 people
- Sponsor
- Radboud University Medical Center
Number of Deep Venous Thrombosis (DVT)
Doppler Ultrasound Following Unicondylar Knee Replacement to Determine the Incidence of Postoperative DVT
Purpose of this study is to determine the incidence of deep venous thrombosis after partial knee replacement.
- Trial name
- NCT02148757
- Testing
- Doppler Ultrasound
- Where
- United States
- Volunteers
- 112 people
- Sponsor
- Hospital for Special Surgery, New York
Growth Hormone Deficiency, Small-for-gestational Age
Growth and Asymmetric diMethylArginine
Principal objective : Validation of a handy biochemical parameter, plasma concentration of Asymmetric DimethylArginine (ADMA), based on a recognize biochemical parameter, the dilation of the brachial artery, at ultrasound…
- Trial name
- GAMMA (NCT03422081)
- Testing
- arterial doppler ultrasound
- Where
- 2 sites in France
- Volunteers
- 23 people
- Sponsor
- University Hospital, Lille
Nutcracker Syndrome, Renal
Body Composition, Urine Protein, and Kidney Blood Flow After Nutritional Counseling in Children With Nutcracker Syndrome
Nutcracker syndrome occurs when the vein carrying blood from the left kidney is compressed between nearby blood vessels. This can cause protein or blood to appear in the urine.
- Trial name
- NCT07868406
- Testing
- Nutritional Counseling
- Where
- Turkey (Türkiye)
- Volunteers
- 96 people
- Sponsor
- Kanuni Sultan Suleyman Training and Research Hospital
Healthy
Fetal Aortic Pulsewave Velocity: A Novel Doppler Ultrasound Method of Measuring the Biophysical Properties of the Fetal Aorta
We are interested in determining if we can measure the blood flow in the descending aorta (large blood vessel in the abdomen) of healthy fetuses and fetuses with growth restriction. An increasing number of adult diseases (e.g.
- Trial name
- NCT00359034
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of British Columbia
Breast Cancer, Interventional Radiology
Using Color Doppler US Artifact to Identify Tumor Markers
Before neoadjuvant chemotherapy (NACT) in cases of locally advanced breast cancer, malignant masses in the breast and biopsy-proven tumor involvement axillary lymph nodes are marked with metallic markers.
- Conditions
- Breast Cancer, Interventional Radiology, Doppler Ultrasound
- Trial name
- NCT06166173
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Istanbul Medeniyet University
Hypotension (MeSH: D007022)
Carotid Artery Blood Flow, Blood Pressure, and Cardiac Output During Anesthesia in Children Aged 0-5 Years
Blood pressure is routinely monitored during anesthesia in children, but blood pressure alone may not accurately reflect blood flow to vital organs.
- Trial name
- CARFLOW (NCT07847203)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Fractures, Bone, Upper Extremity Injury
Ultrasonography in Fracture Management
The bone fracture is usually diagnosed using an X-ray examination (the method of choice). However, in the case of the youngest patients (children and adolescents), it carries a potential risk of X-ray radiation exposure.
- Conditions
- Fractures, Bone, Upper Extremity Injury, Healing Fracture of Bone, Vascularization
- Trial name
- UFrac (NCT04501510)
- Testing
- Ultrasonographic examination validation and testing
- Where
- Poland
- Volunteers
- 50 people
- Sponsor
- University of Warmia and Mazury
Anemia of Prematurity
Near-Infrared Spectroscopy and Cranial Doppler in Premature Newborns With Anemia
It is aimed in this study to examine the changes in brain blood supply and oxygenation in neonatal premature babies who have anemia and who underwent erythrocyte suspension transfusion in the light of original guidelines by means…
- Trial name
- NCT04509375
- Testing
- Cranial Doppler Ultrasonography, Near-Infrared Spectroscopy
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Hacettepe University
Premature Birth
Study on the Development of Neonatal Cerebral Blood Flow Based on Ultrafast Ultrasound Doppler Imaging
Recently, with the development of perinatal medicine in China, the establishment of neonatal intensive care unit (NICU) and the improvement of respiratory support technology, the survival rate of preterm and term neonates has…
- Trial name
- NCT05761548
- Testing
- ultrafast ultrasound power Doppler imaging
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Peking University Third Hospital
Congenital Heart Disease, Cardiac Output
UltraTrac for Cardiac Output Monitoring in Congenital Heart Disease
This pilot feasibility study will evaluate UltraTrac, an investigational noninvasive wearable device for continuous cardiac output monitoring, in patients with congenital heart disease.
- Conditions
- Congenital Heart Disease, Cardiac Output, Hemodynamic Monitoring, Pediatric Heart Disease
- Trial name
- UltraTrac (NCT07866573)
- Testing
- UltraTrac
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- University of Minnesota
Hemodynamic Monitoring
Evaluation of the UltraTrac System as a Non-Invasive Monitor of Hemodynamic Parameters
This study will test the use of the UltraTrac™ system, a small, noninvasive device that uses electrodes on the skin and a small ultrasound sensor to provide measurements of cardiac function in a wide of subjects.
- Trial name
- NCT07862608
- Testing
- Noninvasive Hemodynamic Monitoring System
- Where
- United States
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- AcQumen Medical, Inc.