Clinical trials: Doppler
Physical Exertion
Acute Exercise and Microvascular Function
It is well recognized that chronic exercise protects against the development of cardiovascular diseases. However, the responses of vasculature to acute exercise (AE) are not well known and not consistent in literature.
- Trial name
- NCT02727439
- Testing
- Acute Exhausting Exercise (AE)
- Where
- Croatia
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Josip Juraj Strossmayer University of Osijek
Endometrium, Vascularization
Measuring Endometrial Blood Flow Using Laser Doppler: Acceptability & Reproducibility
35 participants will be recruited from a list of patients who are scheduled, as part of their routine NHS care, to have a clinically-indicated outpatient hysteroscopy for assessment of their uterine cavity.
- Trial name
- EMBeD (NCT04906551)
- Testing
- laser Doppler
- Where
- United Kingdom
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Birmingham Women's and Children's NHS Foundation Trust
Stroke
Reproducibility Study of Transcranial Doppler
Hardening of the neck vessels (carotid arteries) caused by fatty deposits called 'plaques' is a common cause of strokes. Over time plaques can burst or may lead to a severe narrowing (stenosis) of the neck artery.
- Trial name
- NCT03050567
- Testing
- Transcranial Doppler Ultrasound
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Prostate Cancer, Nerve Sparing Prostatectomy
Pilot Study of VTI Doppler Probe Use to Identify Neurovascular Bundle During Prostate Surgery
This study is designed to evaluate the use of a disposable laparoscopic Doppler probe in robotic assisted prostatectomies. The Vascular Technology, Inc.
- Trial name
- NCT01794936
- Testing
- VTI Probe
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Columbia University
Glaucoma, Retinal Vein Occlusion
Study of the Retinal Vascularization by Laser Doppler Velocimetry Coupled With an Adaptive Optics Camera ( AO-LDV)
The difficulty to measure blood flow in humans is connected with the necessity of using not invasive, reliable and reproducible techniques.
- Trial name
- AO-LDV (NCT03525132)
- Testing
- Laser Doppler Velocimetry + Optic Adaptative Camera
- Where
- France
- Volunteers
- 290 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Sickle Cell Disease
Blood Flow and Pain Crises in People With Sickle Cell Disease
Background: Many people with sickle cell disease have repeated episodes of severe pain that lasts for days, requiring hospital care. These episodes, called pain crises, may be caused by changes in blood flow.
- Trial name
- NCT01568710
- Where
- United States
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Gingival Recession
Effect of Hyaluronic-acid on the Healing After Free Gingival Graft
This study evaluated the effect of topical hyaluronic acid (HA) application on free gingival graft (FGG) donor and recipient sites during the early wound healing period with laser Doppler flowmetry (LDF) and to investigate the…
- Trial name
- NCT03871218
- Testing
- Hyaluronic acid group
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Gazi University
Endothelial Dysfunction
Different Oils For Frying and Endothelial Function
The purpose of this study is to compare the effects of the consumption of different oils (olive oil, sunflower oil, sunflower plus dimethyl-polysiloxane, sunflower plus phenols) previously submitted to heating in postprandial…
- Trial name
- NCT00837317
- Testing
- Olive Oil, SF, SF+DMP, SF+phenols
- Where
- Spain
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Hospital Universitario Reina Sofia de Cordoba
Psoriatic Arthritis, Enthesitis
Ultrasound and Shear Wave Elastography Assessment of Entheses in Psoriatic Arthritis
Psoriatic arthritis (PsA) is a chronic inflammatory disease that frequently involves the entheses, where tendons, ligaments, and fascia insert into bone.
- Trial name
- SWE-PsA (NCT07785089)
- Testing
- Grayscale Ultrasonography, Power Doppler Ultrasonography, and Shear Wave Elastography
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Marmara University
Labor Pain
Color Doppler to Confirm Epidural Catheter Positioning in Parturient
The aim of this study is to calculate the sensitivity and specificity of using color Doppler with pulsed wave Doppler to accurately detect the position of epidural catheter
- Trial name
- NCT05606952
- Testing
- Color Doppler
- Where
- Egypt
- Volunteers
- 194 people, healthy volunteers welcome
- Sponsor
- Menoufia University
Cerebral Hypoperfusion, Cerebral Occlusion
Evaluation of Cerebral Blood Flow and Cerebral Oxygenation With Transcranial Doppler and NIRS in Laparoscopic Cholecystectomy Cases
The goal of this clinical trial is to test intracranial blood flow and cerebral oxygenisation changes in patients who have pneumoperitoneum in laparoscopic cholecystectomy procedure.
- Conditions
- Cerebral Hypoperfusion, Cerebral Occlusion, Cholecystitis; Gallstone, Cholecystitis/Cholelithiasis
- Trial name
- NIRS L/C (NCT06036498)
- Testing
- Near Infrared Spectrophotometry Device, Transcranial Doppler Ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Uludag University
Branch Retinal Artery Occlusion, Central Retinal Artery Occlusion
Retinal Oxygen Saturation, Blood Flow, Vascular Function and High Resolution Morphometric Imaging in the Living Human Eye
Canadians fear loss of vision more than any other disability. Vision loss has an enormous impact on quality-of-life and is extremely costly from a societal and economic perspective.
- Conditions
- Branch Retinal Artery Occlusion, Central Retinal Artery Occlusion, Branch Retinal Vein Occlusion, Central Retinal Vein Occlusion
- Trial name
- NCT01348633
- Where
- Canada
- Volunteers
- 275 people, healthy volunteers welcome
- Sponsor
- University of Toronto
Neonatal Sepsis, Markers
Tissue Doppler Echocardiographic Assessment of Cardiac Function in Neonatal Sepsis
1. To assess myocardial function in neonates with sepsis using tissue doppler echocardiography. 2. To assess sepsis induced cardiac dysfunction. 3.
- Trial name
- NCT07572916
- Testing
- cardiac troponin, and blood culture
- Where
- Egypt
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Assiut University
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
Preeclampsia
Prediction and Prevention of Preeclampsia by First Trimester Ultrasound
The purpose of this study is to determine whether the Fetal Medicine Foundation algorithm for individual risk calculation for preeclampsia (PE) and pregnancy induced hypertension (PIH) is suitable to identify women in high risk…
- Trial name
- Screen-tox (NCT01195441)
- Where
- Norway
- Volunteers
- 602 people, healthy volunteers welcome
- Sponsor
- Norwegian University of Science and Technology
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
Postdural Puncture Headache
Prediction of Post-dural Puncture Headache in Parturients Undergoing Elective Caesarean Section
The parturients are at particular risk of post dural puncture headache (PDPH) because of their sex, young age, and the widespread application of spinal and epidural anesthesia.
- Trial name
- NCT03464253
- Testing
- Performance of the transcranial Doppler (TCD)
- Where
- Egypt
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Zagazig University
Unexplained Stillbirth
Low Molecular Weight Heparin in Pregnancies With Unexplained Stillbirths
Bemiparin for pregnant women with abnormal umbilical artery Doppler ultrasound
- Trial name
- NCT03601338
- Testing
- Bemiparin, multivitamins and routine antenatal follow up
- Where
- Iraq
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Hawler Medical University
Healthy Volunteers
Role of Epoxy-eicosatrienoic Acids in Post-occlusive Hyperemia and Thermal Hyperemia
The objective of this proof of concept study is to assess the involvement of epoxy-eicosatrienoic acids (EETs) in post-occlusive hyperemic and thermal hyperemia responses, and the interaction between nitric oxide (NO) and EETs…
- Trial name
- EETY (NCT01290198)
- Testing
- Microdialysis of fluconazole, vehicle and N(G)-nitro-L-arginine-methyl ester (L-NMMA)
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Dental Trauma
Laser Doppler Flowmetry in Assessing the Vitality of Traumatised Teeth
Teeth injuries are considered one of the most challenging events that occur in dentistry, especially in children. After an injury, there is a possibility that the blood supply to the tooth may become affected and compromised…
- Trial name
- NCT03005197
- Testing
- Laser Doppler Flowmetry
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Leeds