Comparison of Echocardiographic Techniques in Diagnosis of Coronary Artery Disease

Inclusion Criteria

• •Patients with known or suspected coronary artery disease.
• •Adults 18 years of age or older.
• •No pre-menopausal patients who are lactating, pregnant or potentially pregnant as judged by history, physical examination, ultrasound or urine pregnancy test.
• •No unstable angina patients.
• •No recent myocardial infarction patients (less than 1 month).
• •No frequent ectopy which precludes adequate image acquisition.
• •No history of asthma or chronic obstructive pulmonary disease.
• •No patients receiving aminophylline, theophylline or dipyridamole.
• •No presence of second and third degree heart block without pacemaker.
• •No significant hypertension (systolic blood pressure greater than 170 mm Hg) or hypotension (systolic blood pressure less than 100 mm Hg).
• •No hypotension: basal sitting systolic arterial pressure less than 100 mm Hg confirmed 30 minutes later.
• •No sinus tachycardia greater than or equal to 100 beats per min.
• •No atrial fibrillation.
• •No inadequate two-dimensional echocardiographic windows.