Clinical trials: Doppler
Monochorionic Diamniotic Placenta, Monochorial Monoamniotic Placenta
MoDi Twin Placental Imaging
Twin-twin transfusion syndrome (TTTS) can arise in monochorionic, diamniotic (MoDi), those identical twins arising from division of a single fertilized ovum at 4-8 days gestational age (GA) or monochorionic, monoamniotic (MoMo or…
- Conditions
- Monochorionic Diamniotic Placenta, Monochorial Monoamniotic Placenta, Monochorionic Twins, Ultrasound Doppler
- Trial name
- NCT07667647
- Testing
- Verasonics Vantage 256 Ultrasound
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Carilion Clinic
Patients With Recurrent Unexplained Pregnancy Loss
JZ Thickness as a Predictor of Recurrent Unexplained First Trimesteric Pregnancy Loss.
Patients with history of two or more recurrent pregnancy loss (RPL) and no history of living babies who had performed all investigations for recurrent miscarriage (RM) including : laboratory investigation ,trans vaginal…
- Trial name
- JZ (NCT03054558)
- Testing
- Pelvic ultrasound both two dimensional and three dimentional
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- sherine Hosny Mohamed Gad Allah
Rheumatoid Arthritis
Open Label Study to Assess the Predictability of Early Response to Certolizumab Pegol in Patients With Rheumatoid Arthritis
The study aims to evaluate the predictability of early response to Certolizumab pegol in combination with Methotrexate at one year in patients with moderate to severe rheumatoid arthritis.
- Trial name
- SPEED (NCT01443364)
- Testing
- Certolizumab pegol
- Where
- 18 sites in Italy
- Volunteers
- 132 people
- Sponsor
- UCB Italy s.p.a.
Fetal Lung Volume of Preterm Fetuses Measured by VOCAL, PA-RI Measured by Pulsed Doppler
Prediction of Neonatal Respiratory Distress Syndrome in Preterm Fetuses by Assessment of Fetal Lung Volume by Vocal and Pulmonary Artery Resistance Index a Pilot Study
The investigators will measure fetal lung volume by VOCAL and pulmonary artery resistance index in preterm fetuses and correlating the results with postnatal respiratory distress of the preterm neonates.
- Trial name
- NCT02283138
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Aortic Valve Stenosis, Aortic Valve Regurgitation
Valve Hemodynamic Optimization Based on Doppler-Echocardiography vs Catheterization Measurements Following ViV TAVR
Data on valve performance following ViV-TAVR has usually been obtained with the use of Doppler-echocardiography. However, some reports have shown significant discordances in the evaluation of mean transvalvular gradient between…
- Conditions
- Aortic Valve Stenosis, Aortic Valve Regurgitation, Prosthesis Failure
- Trial name
- ECHOCATH (NCT05459233)
- Testing
- Doppler-echocardiography, Invasive hemodynamic measurements
- Where
- 7 sites in United States, Canada
- Volunteers
- 310 people
- Sponsor
- Institut universitaire de cardiologie et de pneumologie de Québec, University Laval
Musculoskeletal Injury, Anterior Cruciate Ligament Injuries
Micro-Doppler Radar: A Gold Standard Comparison
The purpose of this study is to see if the study team can use micro-Doppler signal (MDS) technology to determine if someone has had an anterior cruciate ligament (ACL) reconstruction.
- Trial name
- NCT05521126
- Where
- 2 sites in United States
- Volunteers
- 181 people, healthy volunteers welcome
- Sponsor
- Milton S. Hershey Medical Center
Ovarian Insufficiency
The Effect of Salpingectomy Operation on Ovarian Reserve
This study aimed to evaluate the effect of salpingectomy operation on ovarian reserve. Ovarian reserve was evaluated by measuring anti-mullerian hormone levels from serum samples taken from the patients before the operation and 6…
- Trial name
- NCT06903650
- Testing
- bilateral salpingectomy, ovarian arter doppler ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Dokuz Eylul University
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
Minimal Hepatic Encephalopathy
Transcranial Doppler Ultrasound and Minimal Hepatic Encephalopathy
Minimal hepatic encephalopathy (MHE) is a subclinical complication of liver cirrhosis with a relevant social impact. Thus, there is urgent need to implement easy to use diagnostic tools for the early identification of affected…
- Trial name
- NCT04077125
- Testing
- Rifaximin
- Where
- Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Fetal Growth Restriction, Placental Insufficiency
Patterns of Aortic Isthmus Doppler in Early Fetal Growth Restriction , and the Changes in Aortic Isthmus Doppler Parameters With Every Changes of Other Early Iugr Parameters Like EFW, Uterine Artery Doppler, Cerebroplacental Ratio and Ductus Venosus Doppler in Comparison With Normal Group .
This study aims to evaluate the patterns of aortic isthmus Doppler in fetuses diagnosed with early fetal growth restriction (FGR) and to correlate these findings with the severity of FGR and other Doppler parameters.
- Conditions
- Fetal Growth Restriction, Placental Insufficiency, Aortic Isthmus Doppler, Cerebroplacental Ratio
- Trial name
- NCT07676708
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Assiut University
Symptomatic Venous Thromboembolism, Asymptomatic Venous Thromboembolism
Incidence of Venous Thromboembolism Following Surgery in Patients With Colorectal Cancer
Venous thromboembolism (VTE) has harmful effects on morbidity and mortality of cancer patients. In Western VTE guidelines, all solid cancer patients receiving abdominal major surgery are strongly recommended to receive…
- Trial name
- NCT01567917
- Testing
- CRC surgery
- Where
- South Korea
- Volunteers
- 600 people
- Sponsor
- Seoul National University Bundang Hospital
Cardiac Arrest, Doppler Ultrasound
Doppler Ultrasound in Rewarming After Targeted Control Management in Cardiac Arrest
The aim of the study is to describe CBF modifications during rewarming after targeted temperature management in cardiac arrest patients
- Trial name
- DTCHT (NCT03160417)
- Where
- France
- Volunteers
- 40 people
- Sponsor
- University Hospital, Brest
Chronic Heart Failure
SYNCHRO. Evaluation of the Forecasts Parameters of Real Time-three-dimensional Doppler Echocardiography in Selecting Patients With Chronic Heart Failure for Cardiac Resynchronisation Therapy
Patients showing a normal value of SDI (< or + 8%) will randomly be assigned to CRT in "ON" or "OFF"mode at one month after implantation.
- Trial name
- NCT00488410
- Testing
- Doppler echocardiography
- Where
- France
- Sponsor
- University Hospital, Clermont-Ferrand
Neonatal Respiratory Distress
Effect of Antenatal Steroid on Pulmonary Artery Blood Flow
The aim of this study is to determine the effect of administering antenatal steroids in term fetuses on the blood flow in the fetal pulmonary artery, and to correlate these findings with clinical data obtained after birth…
- Trial name
- NCT02978976
- Testing
- Betamethasone, saline
- Where
- Egypt
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
Portal Hypertension, Esophageal Varices
Simvastatin Effect on Portal Hypertension
It´s a clinical research of the effects in portal hypertension caused by simvastatin. We are going to use the hepatic venous pressure gradient(HVPG) measurement and the azygos flow at echoendoscopy to evaluate the benefits of the…
- Conditions
- Portal Hypertension, Esophageal Varices, Liver Cirrhosis
- Trial name
- NCT02134626
- Testing
- Simvastatin
- Where
- Brazil
- Volunteers
- 34 people
- Sponsor
- Universidade Federal do Rio de Janeiro
Acute Kidney Injury, VExUS
Doppler Evaluation for Congestive Acute Kidney Injury in Critical Illness
This study will evaluate the use of the Venous Excess Ultrasound (VExUS) score to guide fluid management in critically ill ICU patients through a prospective, multi-aim design combining observational and randomized components.
- Trial name
- DECONGEST-AKI (NCT07291778)
- Testing
- Fluid Management, No intervention
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- University of Alabama at Birmingham
Diabetes Mellitus, Type 1
Middle Cerebral and Umbilical Arteries Doppler Indices in the Prediction of Adverse Neonatal Outcome Among Diabetic Pregnant Women
120 patients will be included and divided into two groups; Control group that will include 60 healthy pregnant women and Study group that will include 60 pregestational diabetic pregnant patients which furtherly will be…
- Trial name
- NCT03915990
- Testing
- umbilical and middle cerebral artery Doppler
- Where
- Egypt
- Volunteers
- 120 people
- Sponsor
- Cairo University
Focus is on Healthy Subjects
Validation of Pulse Wave Doppler Demodulation Algorithm for the Continuous, Non-invasive Measurement of Blood Flow Velocity
The investigators hypothesize that performance of fast-Fourier transformation on the raw Doppler signals obtained from ascending aortic blood flow will recreate the pulse wave Doppler trace visualized on modern echocardiography…
- Trial name
- NCT01750125
- Testing
- measure ascending aortic blood flow with pulse wave Doppler
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Coronary Artery Disease
Sonolysis in Risk Reduction of Symptomatic and Silent Brain Infarctions During Coronary Stenting
The aim of the project is to demonstrate a fibrinolytic effect of sonothrombolysis (continual transcranial Doppler monitoring) using 2 MHz diagnostic probe on the reduction of risk of brain infarctions due to the activation of…
- Trial name
- NCT02351050
- Testing
- Sonolysis
- Where
- Slovakia
- Volunteers
- 144 people
- Sponsor
- University Hospital Ostrava
Umbilical Artery Doppler, Fetal Heart Rate Tracing
Mobile Phone Effects on Umbilical Artery Doppler and Heart Rate Tracing
Women were instructed not to use the mobile phones for 24 hours before carrying out the initial CTG trace and Doppler ultrasound.
- Trial name
- NCT02445261
- Testing
- mobile phone
- Where
- 2 sites in Egypt
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- Cairo University
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