NCT00579241

Detection of Ultrasound Contrast Signals in the Cerebral Circulation

Detection of Ultrasound Contrast Signals in the Cerebral Circulation During Stress Echocardiography

• Status: Withdrawn
• Phase: N/A
• Study type: Interventional
• Enrollment: 0 (actual)
• Sponsor: University of Nebraska · Academic / Other
• Sex: All
• Age: 19 Years
• Healthy volunteers: Accepted

Summary

To Determine whether transcranial ultrasound can detect the presence of intravenously injected microbubbles used routinely for dobutamine stress echocardiography.

Detailed description

The purpose of this study is to determine whether the intravenous microbubbles used to improve border delineation during dobutamine stress echocardiographies (DSE) can be detected within the cerebral circulation.

Conditions

• Brain Vascular Disorders
• Coronary Artery Disease

Interventions

Type	Name	Description
PROCEDURE	Ultrasound on Temporal Bone	All Patients undergoing dobutamine stress echocardiography have an intravenous line placed and a continuous infusion of a commercially available contrast agent administered. Prior to contrast infusion, baseline transcranial ultrasound images at 0.4 mechanical index using low mechanical index pulses and color Doppler will be performed and recorded. After this the contrast infusion will begin, and resting cardiac images will occur.

Timeline

• Start date: 2006-04-27
• Primary completion: 2009-12-12
• Completion: 2009-12-12
• First posted: 2007-12-24
• Last updated: 2024-09-23