Clinical trials: Ultrasonography, Doppler
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
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
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
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
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
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
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.
Preterm Birth, Prenatal Care Late
This Study Was to Investigate the Efficacy of Fetal Right Heart Doppler Findings in Determination of Pulmonary Maturity
Objective: The aim of this study was to investigate the efficacy of fetal right heart doppler findings in determination of pulmonary maturity.
- Conditions
- Preterm Birth, Prenatal Care Late, Preterm Labor
- Trial name
- NCT04296591
- Testing
- fetal heart doppler findings
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Karadeniz Technical University
Preterm, Patent Ductus Arteriosus
NeoDoppler: New Ultrasound Technology for Continuous Monitoring of Cerebral Circulation Pilot
Non-invasive tools for monitoring of course of disease are important and necessary in the treatment of pre-term/premature infants and sick neonates.
- Conditions
- Preterm, Patent Ductus Arteriosus, Sepsis, Asphyxia
- Trial name
- CE-NeoDoppler (NCT06646250)
- Testing
- NeoDoppler - CE certified
- Where
- Norway
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- St. Olavs Hospital
Arteriovenous Fistula
Color Doppler Ultrasonography in Prediction of Arteriovenous Fistula Maturation in Hemodialysis Patients
The transplant is the definitive treatment of renal insufficiency, in our days. While waiting for it, the arteriovenous fistula surgery is standard procedure.
- Trial name
- NCT03171701
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Assiut University
Malignant Tumor of Women's Reproductive System
Characterizing Malignant Tumors Using Ultrasound Doppler Imaging
The aim of this study is to determine whether Ultrasound Doppler imaging can identify malignant tumors at a very early stage.
- Trial name
- NCT03598335
- Testing
- Ultrasound
- Where
- Israel
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hillel Yaffe Medical Center
Acute Coronary Syndrome, Myocardial Infarction (MI)
Clinical Echocardiography and S' Wave for Early Recognition of Acute Coronary Syndrome in the Emergency Department, A Prospective Study
The goal of this prospective observational study is to assess the diagnostic accuracy of the tissue Doppler imaging (TDI) S' wave in detecting acute coronary syndrome (ACS) in adult patients presenting to the emergency department…
- Conditions
- Acute Coronary Syndrome, Myocardial Infarction (MI), Non-ST Elevation Myocardial Infarction, Unstable Angina
- Trial name
- CLEAR_ECHO (NCT06860997)
- Testing
- Tissue Doppler Imaging (TDI) S' Wave Echocardiography
- Where
- Belgium
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Cliniques universitaires Saint-Luc- Université Catholique de Louvain
Other Acute Illnesses Presenting to the Hospital, Heart Failure
Evaluation of Implementation of a National Point-of-Care Ultrasound Training Program
This VA QUERI Partnered Evaluation Initiative will evaluate the impact of an immersive Point-of-care Ultrasound (POCUS) Training Course on provider skill acquisition and retention; the frequency of POCUS use by trained providers…
- Conditions
- Other Acute Illnesses Presenting to the Hospital, Heart Failure, Pneumonia, Deep Venous Thrombosis
- Trial name
- NCT03296280
- Where
- United States
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Stroke
CLOTBUST Hands-Free: A Phase I/II Pilot Safety Trial
The purpose of CLOTBUST-HF is to determine the safety of a novel, external Hands-Free transcranial Doppler (TCD) ultrasound system in healthy volunteers and ischemic stroke patients.
- Trial name
- CLOTBUST-HF (NCT01240356)
- Testing
- 2-MHz transcranial Doppler ultrasound, 2-MHz transcranial Doppler ultrasound insonation
- Where
- 2 sites in United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center, Houston
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
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