Comparison of Echocardiographic Techniques in Diagnosis of Coronary Artery Disease
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|ClinicalTrials.gov Identifier: NCT00001889|
Recruitment Status : Completed
First Posted : December 10, 2002
Last Update Posted : March 4, 2008
This study is designed to compare two different echocardiographic techniques in the evaluation of heart disease (coronary artery disease). Both tests called Myocardial Contrast Echocardiography with Pharmacologic Stress and Stress Echocardiography with Dobutamine, are performed using a standard echocardiographic machine.
Myocardial Contrast Echocardiography (MCE) does not use radioactivity. It uses sound waves like standard echocardiography. However, with MCE patients receive an injection of a "contrast agent" directly into the blood stream through a vein. The contrast agent, called Optison, is made of tiny microbubbles smaller than red blood cells. The echocardiogram can detect these microbubbles in the small blood vessels of the heart muscle and allow researchers to find areas of the heart receiving less blood flow than others. It is important to observe the heart during exercise because there are changes in blood flow. Since MCE cannot be performed when the patient is exercising, researchers give medication (adenosine) that stimulates the heart and creates a situation similar to exercise.
Stress Echocardiography with Dobutamine does not use radioactivity. It uses sound waves like standard echocardiography. During this echocardiogram patients receive doses of a medication called dobutamine that stimulates the heart to beat stronger and faster.
The purpose of this study is to evaluate the accuracy of MCE compared to stress echocardiography at detecting coronary artery disease (CAD).
|Condition or disease||Intervention/treatment||Phase|
|Coronary Disease||Procedure: Myocardial contrast echocardiography Procedure: Stress echocardiography with dobutamine||Phase 2|
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||150 participants|
|Official Title:||Comparison of Myocardial Contrast Echo With Dobutamine Echo in Diagnosis of Coronary Artery Disease|
|Study Start Date :||March 1999|
|Estimated Study Completion Date :||March 2001|
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00001889
|United States, Maryland|
|National Heart, Lung and Blood Institute (NHLBI)|
|Bethesda, Maryland, United States, 20892|