Clinical trials: Doppler
Cardiovascular Infections, Peripheral Vascular Disease
Placement of Peripherally Inserted Central Venous Catheters (PICC) in Children Guided by Ultrasound
Aimed to compare the success in the peripheral intravenous puncture (PIP), progression and placement of PICC in children, according to the use of Doppler vascular ultrasound (DVUS) or traditional method; to identify the influence…
- Trial name
- NCT01279642
- Testing
- ultrasound, traditional puncture
- Where
- Brazil
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Federal University of São Paulo
Haemodynamic Rebound
Hemodynamic Repercussions of Noninvasive Ventilation
The noninvasive ventilation (NIV) is a method of ventilatory support that does not require artificial airway. Its application is associated with complex hemodynamic repercussions, therefore is important to identify them for…
- Trial name
- NCT02139631
- Testing
- Noninvasive ventilation
- Where
- Brazil
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Federal University of Uberlandia
Healthy Volunteers Only
Calibrating Imaging Techniques to Study Blood Flow
This study will explore the uses of three noninvasive imaging techniques-thermography, laser Doppler imaging, and multispectral imaging-to test the blood flow of healthy volunteers.
- Trial name
- NCT00546091
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Femoroacetabular Impingement, Hip Developmental Dysplasia
Cross-sectional Study of Ultrasonic Diagnosis of Iliac Joint Capsule Muscle
In order to investigate the relationship between the iliac joint capsular muscle and the development of the hip joint, this study used ultrasound Doppler to measure the anatomical circumference of the iliac joint capsular muscle…
- Trial name
- NCT04968301
- Testing
- ultrasound Doppler
- Where
- China
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Medical Device Complication, Brain Injuries
Transcranial Doppler Using Wearable Ultrasound Patch
The main objective of this research is to measure the Doppler signal by the ultrasonic patch. Blood flow measurement is critical for vasospasm, stroke, and embolism monitoring on patients in the ICU or understanding the…
- Conditions
- Medical Device Complication, Brain Injuries, Brain Diseases, Stroke
- Trial name
- TCD (NCT06073145)
- Testing
- conventional transcranial Doppler probe and wearable ultrasound patch.
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Microangiopathy, Microvascular Complications
Microangiopathy in Diabetes
This clinical trial aims to evaluate the use of a contactless and non-invasive technique to measure the properties of the skin's microcirculation and its regulatory functions in both healthy individuals and patients with…
- Trial name
- MIND (NCT07145567)
- Where
- Sweden
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Down Syndrome (Trisomy 21)
Vascular Function in Adults With Down Syndrome
Adults with Down syndrome (Ds) are often thought to have a lower risk of heart and blood vessel disease because they tend to have lower blood pressure (BP) and fewer heart attacks than people without Ds.
- Trial name
- VDS (NCT07630207)
- Where
- United States
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- University of Nevada, Las Vegas
Oligohydramnios
Fetal Renal Artery Doppler Indices in Borderline Isolated Oligohydramnios
The purpose of the study is to investigate third trimester fetal renal artery doppler indices in borderline idiopathic isolated oligohydramnios and relationship between neonatal outcomes.
- Trial name
- NCT02901340
- Testing
- one to two liters of water daily
- Where
- Turkey (Türkiye)
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Kayseri Education and Research Hospital
Fetal Hypoxia, Fetal Conditions
The Relationship Between Umbilical Cord ph and Feto-maternal Doppler Studies in Scheduled Nonlaboring Term Singleton Caesarean Deliveries
Perinatal asphyxia is a crucial reason for neonatal and childhood morbidity and death. Fetal and neonatal acidemia can be utilised as predictors for establishing such risk.
- Trial name
- NCT04364308
- Testing
- Fetal Echography
- Where
- Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Campania Luigi Vanvitelli
Epicardial Fat, Visceral Fat
Epicardial Fat, Visceral Fat and Coronary Atherosclerosis
Background: Visceral fat is increasingly associated with metabolic syndrome and with fatty liver, a condition carrying a high risk of cardiovascular disease.
- Conditions
- Epicardial Fat, Visceral Fat, Atherosclerosis
- Trial name
- NCT01344694
- Testing
- patient with liver fat, pts. with excess of visceral fat, control
- Where
- Israel
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Ziv Hospital
Twin Pregnancy, Monochorionic, Pregnancy Followed
Ductus Venosus Doppler at 16 Weeks in Monochorial Pregnancy
Studies shows that the realization of the Ductus venosus Doppler may improve the screening of the twin-twin transfusion syndrome.
- Trial name
- DVSTT (NCT03579069)
- Testing
- Ductus venosus Doppler
- Where
- France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University Hospital, Montpellier
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
Umblical Artery Doppler in Term Pregnancy
Umblical Artery Systolic \Diastolic Ratio and Amniotic Fluid Index in Prediction of Fetal Outcome in Term Pregnancy
Antepartum fetal surveillance is the cornerstone of management in pregnancy. [1] It is done primarily to reduce the incidence of adverse fetal outcomes. It minimizes morbidity by optimizing the timing of delivery.
- Trial name
- NCT06347913
- Testing
- ultrasound
- Where
- Egypt
- Volunteers
- 213 people, healthy volunteers welcome
- Sponsor
- Sohag University
Congestive Heart Failure (CHF)
Pulmonary Blood Flow Measurements in CHF Patients
Historically, transthoracic Doppler echocardiography has been unable to provide interpretable data of blood flow within the lung parenchyma because of air attenuation of Doppler signals.
- Trial name
- NCT01831713
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Echosense Ltd.
Electrical Cardiometry VS Esophageal Doppler
Hemodynamic Monitoring and Correlation Between Electrical Cardiometry and Esophageal Doppler in Patients Undergoing Major Abdominal Surgery
The aim of this study is to correlate hemodynamic monitoring between noninvasive Electrical Cardiometry and minimally invasive Esophageal Doppler in patients undergoing major abdominal surgery
- Trial name
- NCT04255550
- Testing
- Esophageal doppler
- Where
- Egypt
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Cairo University
Open-angle Glaucoma, Low Tension Glaucoma
Waveform Analysis of the Doppler Curve of Ophthalmic Arteries in Glaucoma Patients
Color Doppler Imaging (CDI) has been providing information about ocular blood flow over the past decades. This non-invasive procedure based on ultrasound technique has identified increased resistance and decreased systolic blood…
- Trial name
- NCT01487655
- Where
- Belgium
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Pregnancy Related, Fetal; Circulation
Doppler Ultrasonographic Assessment of Fetal Internal Thoracic Artery Indexes
The aim of this study is to assess the feasibility of visualizing the internal thoracic artery (ITA), establishing the normogram for ITA pulsatility index (PI), resistance index (RI) and acceleration/ejection time (AT/ET) at…
- Trial name
- NCT04686240
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Ankara City Hospital Bilkent
Female Sexual Dysfunction
Assessing the Effects of a Topically Applied Cream to Clitoral Blood Flow
The purpose of this study is to determine if blood flow to the clitoris is increased by topically applying a cream that causes increased blood flow. This will be measured with a sonogram.
- Trial name
- NCT01085981
- Testing
- arginine 20%, nicotinamide .01%, niacin.1%, in LipodermPG 50%, Topical study cream, GRAS cream
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- East Suburban Ob Gyn
Preeclampsia, Preterm Birth
Prediction of Preeclampsia and Other Pregnancy Complications Following Combined Iterative Screening
Preterm birth (PTB), preeclampsia (PE), fetal growth restriction (FGR) and intra-uterine fetal death (IUFD) constitutes the main causes of perinatal morbidity and mortality and are called "Great Obstetrical Syndromes".
- Conditions
- Preeclampsia, Preterm Birth, Fetal Growth Restriction, Intra Uterine Fetal Death
- Trial name
- PREDICTION2 (NCT03067298)
- Where
- Canada
- Volunteers
- 805 people, healthy volunteers welcome
- Sponsor
- Emmanuel Bujold
Preeclampsia, Severe Preeclampsia
Pre-Eclampsia And Growth Restriction: a Longitudinal Study
Preeclampsia may have several causes leading to different characteristics of the pathology. Differentiation between the "type of preeclampsia" would help to treat patients more accurately.
- Conditions
- Preeclampsia, Severe Preeclampsia, Fetal Growth Restriction, Preterm Birth
- Trial name
- PEARL (NCT02379832)
- Where
- Canada
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- CHU de Quebec-Universite Laval