Clinical trials: Doppler
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
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
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
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
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
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
Right-to-left Shunt, Migraine
Registry of Right-to-left Shunt Detection by Contrast-enhanced Transcranial Doppler in Chinese Population
The purpose of the study is to evaluate the prevalence and extent of right-to-left shunt (RLS) in Chinese migraineurs, and the morbidity of silent cerebral infarction in migraineurs.
- Conditions
- Right-to-left Shunt, Migraine, Cerebral Infarction
- Trial name
- NCT02425696
- Where
- China
- Volunteers
- 1,100 people, healthy volunteers welcome
- Sponsor
- Yingqi Xing
Coronary Artery Disease
2D and Tissue Doppler Imaging Echocardiography Analysis of Left Ventricular Regional Wall Motion and Prognosis
Development of myocardial ischemia, and/or myocarditis would induce different changes in myocardial contraction behavior pattern,which maybe very subtle, and may not be detected by the 2D and m-mode echocardiography examinations.
- Trial name
- TDI (NCT01092429)
- Where
- Taiwan
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Diabetes Mellitus
Microvascular Response in Diabetes Mellitus
Vascular and neurological mechanisms are both likely to be involved in foot ulcer. We recently reported on the hand an original transient pressure-induced vasodilation (PIV) during a 5 mmHg/min increase of pressure strain using…
- Trial name
- NCT00160927
- Testing
- local heating, iontophoresis, actylcholine
- Where
- France
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University Hospital, Angers
Endothelial Function, Cognition
Cognitive and Cerebral Blood Flow Effects of Vitamin C
This investigation is interested in the effects of high dose vitamin C on endothelial function in healthy humans. A high fat meal will be utilized to induce endothelial dysfunction.
- Trial name
- NCT01055418
- Testing
- Vitamin C
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Skin Thickness, Skin Stiffness
Effects of Vibration Therapy on Plantar Skin Properties
The goal of this clinical trial is to learn if there are changes in plantar skin surface in the first metatarsal head (M1) after getting local vibration treatments.
- Conditions
- Skin Thickness, Skin Stiffness, Microcirculation
- Trial name
- NCT07863843
- Testing
- Local vibration
- Where
- Taiwan
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Asia University
Preterm Labor, Cerebral Palsy
Calcium Channel Blockers Compared to Magnesium Sulfate in Fetal Cerebral Blood Flow
The aim of this study is to investigate the possible use of calcium channel as a neuroprotectant in cases with PTL. This will be done by comparing the effect they have on cerebral blood vessels with the already established MgSo4.
- Trial name
- NCT02591004
- Testing
- Magesium sulphate, Nifedipine, Doppler on fetal middle cerebral artery
- Where
- Egypt
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
Fetal Surveillance, Intrauterine Growth Restriction
Comparison of Follow-up Protocols in Terms of Fetal, Neonatal and Maternal Results in Intrauterine Growth Retardation
This study will be undertaken to determine whether the frequency of fetal surveillance can be safely reduced from bi-weekly to weekly in the case of fetusus with intrauterine growth restriction.
- Trial name
- NCT04141189
- Testing
- weekly, bi-weekly
- Where
- Turkey (Türkiye)
- Volunteers
- 206 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Diabetes Type 2
Exercise Study on Cardiac Function in Patients With Diabetes Mellitus Type 2 and Diastolic Dysfunction
The aim of the study is to compare the effects of aerobic interval training and the IDF recommendations on physical activity on cardiac function and CV risk factors in patients with diabetes.
- Trial name
- NCT01206725
- Testing
- Exercise
- Where
- Norway
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Norwegian University of Science and Technology
Term Pregnancy, Doppler Parameters
Relationship Between Delivery Route and Fetal Complications With Doppler Indices and CPR Parameters
Term pregnancies within their 37-41 gestational week, who were planned to undergo induction of labor, were included in the study.
- Conditions
- Term Pregnancy, Doppler Parameters, Induction of Labor, Fetal Complications
- Trial name
- Doppler (NCT04158609)
- Testing
- Doppler flow indices assessment
- Where
- Turkey (Türkiye)
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Istanbul Medeniyet University
Peripheral Neuropathy
Early Detection of Taxane-Induced Neuropathy in Women With Breast Cancer
Purpose: The purpose of the study is to test a new way of measuring nerve damage in women with breast cancer receiving chemotherapy drug paclitaxel (Taxol).
- Trial name
- NCT02549534
- Testing
- Axon Reflexes, Axon Flares, Self-Reported Signs & Symptoms of CIPN
- Where
- 2 sites in United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Indiana University
Term Labour
Accuracy and Reliability of Novii: Fetal Heart Rate (FHR), Maternal Heart Rate (MHR) and Uterine Contraction (UA) Compared With Doppler, Scalp Fetal Scalp Electrode (FSE), Tocodynamometer (TOCO) and Intra Uterine Pressure Catheter (IUPC)
Accuracy and Reliability of the Novii device (fetal heart rate, maternal heart rate and uterine activity) compared with Food and Drug Administration (FDA) approved techniques
- Trial name
- NCT03409146
- Testing
- Monica Novii Wireless Patch System
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- GE Healthcare
Venous Thrombosis
A Comparison of Neuromuscular Electrical Stimulation and Intermittent Pneumatic Compression in Terms of Lower Limb Blood Flow
Deep Vein Thrombosis (DVT) is a life threatening condition and a serious concern among hospitalized patients, with death occurring in approximately 6% of cases.
- Trial name
- NCT01886612
- Testing
- Duo-STIM neuromuscular electrical stimulator, AV Impulse System Model 6000
- Where
- Ireland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- National University of Ireland, Galway, Ireland