Clinical trials: Ultrasonography, Doppler
Intracranial Pressure, Circulation System
The Effect of Arterial Carbon Dioxide Levels on Cerebral Blood Flow and Cerebral Autoregulation in the Steep Trendelenburg Position During Robot-assisted Prostatectomy, and Its Effect on Postoperative Cognition
Patients scheduled for robot-assisted prostatectomy will be randomized to either high or low concentrations of carbon dioxide in the blood.
- Conditions
- Intracranial Pressure, Circulation System, Cerebral Perfusion Pressure, Cognitive Function
- Trial name
- TILTDOWN-3 (NCT06865027)
- Testing
- Ventilation strategy
- Where
- Norway
- Volunteers
- 46 people
- Sponsor
- University Hospital, Akershus
Echocardiography, Doppler
Technical Development of Strain Rate Echocardiography
This study will examine heart function using two imaging techniques - echocardiography (ultrasound) and magnetic resonance imaging (MRI) - to evaluate newly developed software for echocardiograph machines.
- Trial name
- NCT00075920
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Cerebral Vascular Accident (CVA)/Stroke
Transcranial Doppler (TCD) Ultrasound and Cognition in Cerebral Vascular Disease. (SUNRISE)
This study aims to contribute to the identification of factors that may be predictive of cognitive function and to provide data on cerebral hemodynamic in ischemic and haemorrhagic stroke.
- Trial name
- SUNRISE (NCT06735274)
- Testing
- Cerebral Autoregulation (CAR), Neurovascular coupling (NVC), Microembolic signals (MES)
- Where
- Portugal
- Volunteers
- 517 people
- Sponsor
- Universidade do Porto
Vertigo, Carotid Artery Diseases
Is Carotid-Vertebral Doppler Ultrasonography Necessary for Patients With Vertigo?
This study will be carried out prospectively on patients who applied to the cardiovascular surgery polyclinic and the carotid-vertebral artery doppler ultrasound due to the vascular problem.
- Trial name
- NCT05196685
- Testing
- Carotid Doppler USG
- Where
- Turkey (Türkiye)
- Volunteers
- 195 people, healthy volunteers welcome
- Sponsor
- Pamukkale University
Traumatic Brain Injury
Translational Research Examining Acupuncture Treatment in Traumatic Brain Injury
The purpose of this study is to examine the effects of acupuncture on cerebral blood flow (CBF) and blood biomarkers during the acute 10-day window following traumatic brain injury, to determine if those changes correlate with…
- Trial name
- TREAT-TBI (NCT02623218)
- Testing
- Acupuncture
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- AOMA Graduate School of Integrative Medicine