Integrated RF and B-mode Deformation Analysis for 4D Stress Echocardiography

Integrated RF and B-mode Deformation Analysis for 4D Stress Echocardiography

The specific aim of this clinical trial is to translate the investigators new 4DE (three sptial dimensions pluse time) stress echocardiographic method to patients with coronary artery disease referred for clinically indicated dobutamine stress/rest echo to evaluate the reproducibility of the technique in this clinical setting.

Inclusion Criteria:

• At least 18 years of age, referred for clinically indicated dobutamine rest/stress TTE
• Provide written informed consent to participate in the study
• Availability for repease rest/stress TTE within on eweek of clinically indicated study

Exclusion Criteria:

• Unable to give informed consent
• Unstable hemodynamics that would not allow for repease rest/stress dobutamine transthoracic imaging
• Recurrent life threatening arrhythmias
• Heart rate >110 BPM
• Inadequate windows for transthoracic imagine
• Patients that have a narrow-angle glaucoma (contraindication for atropine)
• Change in cardiac medications or management including, coronary revascularization beween intial and repeat TTE study.