Clinical trials: Doppler Ultrasound
Cardiac Arrest
Carotid Ultrasound Under Pulsed-wave Doppler Mode to Check the Pulse in Cardiopulmonary Arrest Patients.
It's crucial to determine whether a pulse is present or not in patient with cardiac arrest. But more and more studies have shown that manual palpation is unreliable for detecting pulse 1-4.
- Trial name
- NCT04790396
- Testing
- Carotid ultrasound under pulsed-wave doppler mode
- Where
- Taiwan
- Volunteers
- 50 people
- Sponsor
- National Taiwan University Hospital
Graves' Disease
Assessment of Thyroid Doppler Ultrasound in Followup of Pediatric Graves' Disease
All cases of the study will be diagnosed as Graves' by History, examination, laboratory (FT3, FT4, TSH \& TRAbs), X-ray on left wrist for bone age, neck grey scale ultrasonography for thyroid gland size, shape, echotexture…
- Trial name
- NCT06357494
- Volunteers
- 32 people
- Sponsor
- Assiut University
Postmenopausal Bleeding
Office Hysteroscopy and 3D Power Doppler Vaginal Ultrasound in Assessment of Postmenopausal Bleeding
100 patients with postmenopausal bleeding were assessed with 2D vaginal ultrasound and 3D power Doppler ultrasound using the international endometrial tumor analysis group and office hysteroscopy with taking samples for…
- Trial name
- NCT02488798
- Testing
- 2D grey scale vaginal ultrasound, 3D power Doppler vaginal ultrasound, Office hysteroscopy
- Volunteers
- 100 people
- Sponsor
- Cairo University
Cardiovascular System
Effects of Caffeine on Cerebral Blood Flow
The goal of this clinical trial is to evaluate in clinically healthy young people if: after caffeine ingestion, there are variations in blood velocity of the middle cerebral arteries (VMCA), this variation is dependent on the…
- Trial name
- NCT05866848
- Testing
- Anhydrous caffeine (45mg), Anhydrous caffeine (120mg)
- Where
- Portugal
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Escola Superior de Tecnologia da Saúde de Coimbra
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.
Infertility
Perifollicular Vascularity Assessment in in-Vitro Fertilization
On February 2004, a law (n. 40/2004) regulating assisted reproduction techniques (ARTs) was approved in Italy. This law aimed to regulate the treatment of infertility in Italy, contains several restrictions, such as the…
- Trial name
- NCT00458380
- Testing
- Controlled ovarian stimulation, perifollicular vascularity assessment, IVF, embryo transfer.
- Where
- Italy
- Volunteers
- 116 people
- Sponsor
- University Magna Graecia
Erectile Dysfunction Due to Arterial Disease
Prospective Cross-sectional Evaluation of Penile Helicine Circulation in Veno-occlusive Erectile Dysfunction
Background: The aim of this study is to evaluate the usefulness of Power Doppler in order to improve the diagnostic work up of veno-occlusive erectile dysfunction patients.
- Trial name
- PD and VOD (NCT05311748)
- Testing
- Ultrasound and doppler
- Where
- 2 sites in Italy
- Volunteers
- 202 people
- Sponsor
- University of Roma La Sapienza
Rheumatoid Arthritis
Role of Greyscale and Power Doppler Sonography in Therapy Monitoring in Early Rheumatoid Arthritis (RA)
The purpose of this study is to evaluate the role of musculoskeletal ultrasound and power Doppler in early therapy monitoring of rheumatoid arthritis patients.
- Trial name
- NCT00854243
- Volunteers
- 20 people
- Sponsor
- Cairo University
Tibial Fracture
Doppler Ultrasonography Evaluation of Tibial Fracture Site Vascularity
The purpose of this study is to evaluate the blood supply to patients that are suffering from fracture in the tibia by UltraSound Doppler.
- Trial name
- NCT00365573
- Where
- Israel
- Volunteers
- 30 people
- Sponsor
- Hadassah Medical Organization
Chronic Cerebrospinal Venous Insufficiency
Doppler Sonography, MR Venography, Plethysmography for the Diagnosis of CCSVI
This study is aimed at evaluation of diagnostic value of Doppler sonography, MR venography and air-plethysmography for the assessment of abnormalities in the internal jugular veins, with catheter venography as the reference test.
- Trial name
- NCT01425554
- Testing
- Doppler sonography of internal jugular veins, Magnetic resonance venography of internal jugular veins, Air-plethysmography of the neck
- Where
- Poland
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- Euromedic Specialist Clinics, Poland
Aortic Valve Stenosis, Extracorporeal Circulation
Cerebral Embolic Load in Patients Undergoing Surgical Aortic Valve Replacement: A Comparison of the Conventional With the Minimized Extracorporeal Circulation Technique Using Transcranial Doppler Ultrasound
In this study, the investigators aim to compare cerebral embolic load in patients undergoing surgical aortic valve replacement using either the minimized extracorporeal circulation or the conventional extracorporeal circulation…
- Trial name
- AKE-MECC (NCT02308566)
- Testing
- Minimized Extracorporeal Circulation (MECC), Conventional Extracorporeal Circulation (CECC)
- Where
- Switzerland
- Volunteers
- 48 people
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Rheumatoid Arthritis (RA), Gouty Arthritis (GA)
Musculoskeletal Ultrasound for Differentiating Rheumatoid and Gouty Arthritis
Rheumatoid arthritis (RA) and gouty arthritis (GA) are two common forms of joint inflammation that can present with very similar physical symptoms, making them difficult to tell apart early in the disease process.
- Conditions
- Rheumatoid Arthritis (RA), Gouty Arthritis (GA), Gout, Inflammatory Arthritis
- Trial name
- NCT07657156
- Volunteers
- 100 people
- Sponsor
- Assiut University
Peripheral Arterial Disease
Correlation Between Selected Haematological and Doppler Ultrasonic Parameters in Peripheral Arterial Diseased Patients
Forty patients of both sexes, aged between 50 and 60 years, were chosen from an outpatient vascular clinic in the El Sahel Education Hospital. Patients have been examined and referred to by a vascular specialist.
- Trial name
- NCT04830254
- Testing
- Transcutaneous Electrical Nerve Stimulation(TENS) device
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Cairo University
Carpal Tunnel Syndrome (CTS)
Ultrasound Evaluation in Carpal Tunnel Syndrome
This prospective cohort study aims to evaluate median nerve cross-sectional area and intraneural vascularity using power Doppler ultrasonography in patients with carpal tunnel syndrome.
- Trial name
- CTS-PD (NCT07433166)
- Testing
- Doppler ultrasound
- Volunteers
- 100 people
- Sponsor
- SB Istanbul Education and Research Hospital
Chronic Neck Pain
Longitudinal Stripping Massage vs. Percussion Device for Neck Pain: Ultrasound Study.
This study evaluates whether a single session of percussion therapy can reduce muscle tension and increase blood flow in the transverse cervical artery in individuals with neck pain.
- Trial name
- NCT07630142
- Testing
- Percussion Therapy, Longitudinal stripping masage
- Where
- Poland
- Volunteers
- 35 people
- Sponsor
- Poznan University of Physical Education
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
Fetal Growth Restriction
COmputerized CTG Self-MOnitoring Versus Standard Doppler Assessment in Late-onset FGR: COSMOS Study
Fetal growth restriction is one of the major causes of perinatal morbidity, mortality and adverse neurological outcome. Growth restricted fetuses do not reach their potential due to multiple factors.
- Trial name
- COSMOS (NCT05034861)
- Testing
- cCTG, Doppler
- Where
- Poland
- Volunteers
- 150 people
- Sponsor
- Institute of Mother and Child, Warsaw, Poland
Subarachnoid Hemorrhage, Aneurysmal, Cerebral Vasospasm
Stellate Ganglion Block in Preventing Cerebral Vasospasm Secondary to Subarachnoid Hemorrhage
To investigate whether the stellate ganglion block is helpful in relieving cerebral vasospasm during aneurysmal coil embolism surgery. The effect was assessed by Transcranial Doppler (TCD).
- Trial name
- NCT04512859
- Testing
- Stellate Ganglion Block
- Volunteers
- 160 people
- Sponsor
- Beijing Tiantan Hospital
Varicocele, Male Infertility
Intratesticular Artery Resistive Index Changes After Varicocelectomy
This study aims to evaluate how blood flow inside the testicles changes after surgery to correct a varicocele, and whether these changes correlate with improvements in semen quality and testosterone levels.
- Conditions
- Varicocele, Male Infertility, Secondary Hypogonadism
- Trial name
- NCT07517952
- Testing
- Microscopic Sub-inguinal Varicocelectomy
- Volunteers
- 40 people
- Sponsor
- Assiut University
Hemodialysis
Ultrasound Instrument to Prevent Dialysis Graft Failure
This research study aims to show that a newly developed investigational Doppler instrument can reliably measure blood flow in dialysis access grafts, to see if a decrease in the flow may be a sign of impending graft failure and…
- Trial name
- NCT00309348
- Testing
- Weekly measurement of graft flow
- Where
- 2 sites in United States
- Volunteers
- 111 people
- Sponsor
- DVX, LLC